2. Warrantless Arrests and Searches

Concept

A finding of probable cause needs only to rest on facts and circumstances sufficient to lead a reasonably discreet and prudent person to believe that an offense has been committed and that the person sought to be arrested committed it. Probable cause demands more than bare suspicion; it requires less than evidence which would justify conviction. The existence depends to a large degree upon the finding or opinion of the judge conducting the examination. However, the findings of the judge should not disregard the facts before him nor run counter to the clear dictates of reason. (Laud v. People, G.R. No. 199032, Nov. 19, 2014)

Unannounced Intrusion When Permissible

Unannounced intrusion into the premises is permissible when:

• A party whose premises or is entitled to the possession thereof refuses, upon demand, to open it;
• When a person inside already knows the officers’ identity, authority, and purpose;
• When the officers are justified in the honest belief that there is an imminent peril to life or limb; and
• When those in the premises, aware of the presence of someone outside (because, for example, there has been a knock at the door), are then engaged in activity which justifies the officers to believe that an escape or the destruction of evidence is being attempted.

Suspects have no constitutional right to destroy evidence or dispose of evidence. However, the exceptions above are not exclusive or conclusive. At times, without the benefit of hindsight and ordinarily on the spur of the moment, the officer must decide whether or not to make an unannounced intrusion into the premises. Although a search and seizure of a dwelling might be constitutionally defective, if the police officers’ entry was without prior announcement, law enforcement interest may also establish the reasonableness of an unannounced entry.

Indeed, there is no formula for the determination of reasonableness. Each case is to be decided on its own facts and circumstances. In determining the lawfulness of an unallowed entry and the existence of probable cause, the courts are concerned only with what the officers had reason to believe and the time of the entry. (People v. Huang Zhen Hua, G.R. No. 139301, Sept. 29, 2004)

Purpose

To hold that no criminal can, in any case, be arrested and searched for the evidence and tokens of his crime without a warrant, would be to leave society, to a large extent, at the mercy of the shrewdest, the most expert, and the most depraved of criminals, facilitating their escape in many instances. (Umil v. Ramos, G.R. No. 81567 July 9, 1990)

In warrantless arrests, it is not enough that there is reasonable ground to believe that the person to be arrested has committed a crime. A crime must in fact or actually have been committed first. (People v. Burgos, G.R. No. L-68955)

Instances When Warrantless Arrest May Be Made

A peace officer or a private person may, without a warrant, arrest a person:

• In Flagrante Delicto: When, in his presence, the person to be arrested has committed, is actually committing, or is attempting to commit an offense;
• Hot Pursuit Arrest: When an offense has just been committed and he has probable cause to believe based on personal knowledge of facts or circumstances that the person to be arrested has committed it; and
• When the person to be arrested is a prisoner who has escaped from a penal establishment or place where he is serving final judgment or is temporarily confined while his case is pending, or has escaped while being transferred from one confinement to another. (ROC, Rule 113, § 5)

In Flagrante Delicto

Requisites (OP)

• The person to be arrested must execute an Overt act indicating that he has just committed, is actually committing, or is attempting to commit a crime; and
• Such overt act is done in the Presence or within the view of the arresting officer.

Reliable information alone is insufficient to support the arrest absent any overt act from the person to be arrested indicating a crime has just been committed, was being committed, or is about to be committed. (Veridiano v. People, G.R. No. 200370, June 7, 2017)

Officer Sees the Offense, Although at a Distance

When the illegal act was committed in the presence of the arresting officers, a warrantless arrest may be effected. An offense is committed in the presence of an officer when the officer sees the offense, although at a distance, or hears the disturbances created thereby and proceeds at once to the scene of the crime. Prior surveillance may provide context, but the arresting officers must perceive an overt criminal act to effect an in flagrante delicto arrest. (People v. Sucro, G.R. No. 93239, March 18, 1991)

For an arrest of a suspect in flagrante delicto, two elements must concur, namely: (a) the person to be arrested must execute an overt act indicating that he has just committed, is actually committing, or is attempting to commit a crime; and (b) such overt act is done in the presence or within the view of the arresting officer. The officer's personal knowledge of the fact of the commission of an offense is absolutely required. The officer himself must witness the crime. Furthermore, the facts do not give rise to a reasonable suspicion that X was in possession of shabu. From a meter away, even with perfect vision a police officer would not have been able to identify with reasonable accuracy the contents of the plastic sachet. X's acts of standing on the street and holding a plastic sachet in his hands, are not by themselves sufficient to incite suspicion of criminal activity or to create probable cause enough to justify a warrantless arrest. (Dominguez y Argana v. People, G.R. 235898, Mar. 13, 2019)

Continuing Offense

The crimes of rebellion, conspiracy or proposal to commit rebellion, and crimes or offenses committed in furtherance thereof or in connection therewith constitute direct assaults against the State and are in the nature of continuing crimes. Thus, a rebel may be arrested without a warrant while committing acts constituting a punishable continuing offense. (Umil v. Ramos, G.R. No. 81567 July 9, 1990)

Buy-Bust

In buy-bust operations, the arresting officers catch the malefactor in flagrante delicto. But the arresting officers must neither instigate nor induce the arrestee to commit a crime. Entrapment is the employment of such ways and means for the purpose of capturing a lawbreaker from whose mind the criminal intent originated. In such cases, a search warrant is not necessary because a search pursuant to a buy-bust operation is one made incidental to a lawful arrest – the arrestee is caught in flagrante delicto. (People v. De La Cruz, G.R. No. 101315, May 12, 1993)

Stop and Frisk

An officer may briefly stop a person on reasonable suspicion grounded in specific, personally observed facts indicating criminal activity, and may conduct a limited protective frisk for weapons when the circumstances reasonably indicate that the person is armed and dangerous. If a lawful protective frisk reveals an unlawfully possessed firearm or other contraband whose possession constitutes an offense, the officer may make an in flagrante delicto arrest under Rule 113, Section 5(a).

For the arrest of one in flagrante delicto to be valid under Rule 113, Section 5(a), the officer must observe acts and circumstances establishing probable cause that an offense is being committed in his presence. Speech alone does not justify a warrantless arrest merely because the officer considers it seditious. The criminal character of speech is something that is not easily determined and must await court estimation.

Hot Pursuit Arrest

Requisites

• An offense has just been committed.
• The arresting officer has probable cause to believe, based on personal knowledge of facts or circumstances, that the person to be arrested committed the offense. (People v. Comprado, G.R. No. 213225, April 4, 2018)

Element of Immediacy

The clincher in the element of ''personal knowledge of facts or circumstances" is the required element of immediacy within which these facts or circumstances should be gathered. This required time element acts as a safeguard to ensure that the police officers have gathered the facts or perceived the circumstances within a very limited time frame. This guarantees that the police officers would have no time to base their probable cause finding on facts or circumstances obtained after an exhaustive investigation.

The reason for the element of the immediacy is this - as the time gap from the commission of the crime to the arrest widens, the pieces of information gathered are prone to become contaminated and subjected to external factors, interpretations and hearsay. On the other hand, with the element of immediacy imposed under Section 5(b), Rule 113 of the Revised Rules of Criminal Procedure, the police officer's determination of probable cause would necessarily be limited to raw or uncontaminated facts or circumstances, gathered as they were within a very limited period of time. The same provision adds another safeguard with the requirement of probable cause as the standard for evaluating these facts of circumstances before the police officer could effect a valid warrantless arrest. (Pestilos v. Generoso, G.R. No. 182601, Nov. 10, 2014)

Manlulu was arrested without a warrant for allegedly having killed another person at around 1:00AM in the morning. The warrantless arrest was made around 7:00PM or about 18 hours later. The SC held that for there to be a lawful warrantless arrest, the arresting officer must have personal knowledge of the offense, which has in fact just been committed. In other words, the arrest has to immediately follow the commission of the offense. If a sufficient amount of time lapses as to allow him to procure a warrant, then the police officer must do so. In this case, not only was the arrest about 18 hours after the alleged crime, but the arresting officer also did not have any personal knowledge of the facts. The SC also held that personal gathering of information is different from personal knowledge. (People v. Manlulu, G.R. No. 102140, Apr. 22, 1994).

Probable Cause

In determining probable cause, the arresting officer may rely on all the information in his possession, his fair inferences therefrom, including his observations. Mere suspicion does not meet the requirements of showing probable cause to arrest without warrant especially if it is a mere general suspicion. Probable cause may rest on reasonably trustworthy information as well as personal knowledge. Thus, the arresting officer may consider information supplied by a witness or a victim of a crime, but must have personal knowledge of facts or circumstances establishing probable cause that the person to be arrested committed an offense that has just been committed; a hearsay tip alone is insufficient.

The arresting officer should base his determination of probable cause on his personal knowledge of facts and circumstances that the person sought to be arrested has committed the crime. In other words, the arresting officer operates on the basis of more limited facts, evidence or available information that he must personally gather within a limited time frame.

One should not expect too much of an ordinary policeman. He is not presumed to exercise the subtle reasoning of a judicial officer. Oftentimes, he has no opportunity to make proper investigation but must act in haste on his own belief to prevent the escape of the criminal. (Pestilos v. Generoso, G.R. No. 182601, Nov. 10, 2014)

Personal Knowledge: Hearsay Tip Insufficient

The rule requires that an offense had just been committed. It connotes immediacy in point of time. Law enforcers need not personally witness the commission of a crime. However, they must have personal knowledge of facts and circumstances indicating that the person sought to be arrested committed it. A hearsay tip by itself is not personal knowledge required by the rule. (Sapi v. People, G.R. No. 200370, June 7, 2017)

The requirement of personal knowledge is absent in this case. The Policeman was about 6-10 meters away when he saw the accused emerge from an alley holding a plastic sachet. His testimony fails to state that he had personal knowledge that the sachet contained shabu, or that he saw the sachet containing white crystalline substance, to create a reasonable suspicion that the sachet did indeed contain shabu. From all indications — the time of the arrest being 11:30 p.m., the Policeman's location, and the tinted front windshield of the van through which he was looking — it was highly doubtful that the Policeman saw, let alone deciphered, the contents of the sachet. For sure, it was only when he held the hand of the accused and confiscated the plastic sachet that he was able to verify its contents. (Villasana y Cabahug v. People, G.R. No. 209078, Sept. 4, 2019)

Escapee

An arrest without warrant is lawful when the person to be arrested is a prisoner who has escaped from a penal establishment or place where he is serving final judgment or temporarily confined while his case is pending, or has escaped while being transferred from one confinement to another. (ROC, Sec. 5(c), Rule 113)

Objection to Illegal Arrest Must be Made Before Plea

Appellant is estopped from questioning the legality of his arrest considering that he never raised this before entering his plea. Any objection involving a warrant of arrest or the procedure in the acquisition of jurisdiction over the person of an accused must be made before he enters his plea, otherwise, the objection is deemed waived. Consequently, any irregularity attendant to his arrest, if any, had been cured by his voluntary submission to the jurisdiction of the trial court when he entered his plea and participated during the trial. (People v. Salvatierra, G.R. No. 104663, July 24, 1997)

Accused was seen having a pot session and that the police who arrested him were conducting a “stakeout” operation. When accused tested positive for drugs, he was charged with violation of RA 9165. Accused did not deny that he was positive for drugs but rather, he questions the alleged illegality of his arrest. The Court ruled that accused had already waived the right to question the arrest. He was assisted by counsel when he entered his plea and was able to present his evidence. The right to question the validity of an arrest may be waived if the accused, assisted by counsel, fails to object to its validity before arraignment. (Lapi v. People, G.R. No. 210731, Feb. 13, 2019)

Waiver of an Illegal Arrest, Not a Waiver of an Illegal Search

A waiver of an illegal arrest, however, is not a waiver of an illegal search. While the accused has already waived his right to contest the legality of his arrest, he is not deemed to have equally waived his right to contest the legality of the search. (Villanueva v. People, G.R. No. 199042, Nov. 17, 2014)

A waiver of an illegal warrantless arrest does not also mean a waiver of the inadmissibility of evidence seized during an illegal warrantless arrest. (Valdez v. People, G.R. No. 170180, Nov. 23, 2007)

The right to question the validity of an arrest may be waived if the accused, assisted by counsel, fails to object to its validity before arraignment. This waiver, however, does not carry with it a waiver of the inadmissibility of the evidence seized during the illegal arrest. (Lapi v. People, G.R. No. 210731, Feb. 13, 2019)

WARRANTLESS SEARCHES

A search without a warrant may be reasonable in exceptional circumstances. Jurisprudence recognizes the following instances of permissible warrantless searches. (Sapi v. People, G.R. No. 200370, June 7, 2017)

• Search conducted with a valid waiver of the right against unreasonable searches
• Search incidental to a lawful arrest
• Seizure of evidence in plain view
• Search during exigent or emergency circumstances
• Search of a moving vehicle
• Stop-and-frisk search (Terry search)
• Customs search
• Airport search
• Checkpoint search
• A genuinely private search is generally outside the constitutional restriction on unreasonable governmental searches; a private person acting as a government agent is not. A private person may make a warrantless arrest in the circumstances specified in Section 5, Rule 113 of the Rules of Court, but that power does not itself authorize a search. A search claimed to be incidental to that arrest must separately meet the requirements of Section 13, Rule 126 for a search incident to a lawful arrest. (People v. Aruta, G.R. No. 120915, April 3, 1998)

Determined by the Totality of the Circumstances

The validity of a consented warrantless search is determined by the totality of the circumstances. This may involve an inquiry into the environment in which the consent was given such as the presence of coercive police procedures. (Sapi v. People, G.R. No. 200370, June 7, 2017)

Search Incidental to a Lawful Arrest

A person lawfully arrested may be searched for dangerous weapons or anything which may have been used or constitute proof in the commission of an offense without a search warrant. (ROC, Rule 126, § 13)

Purpose

The purpose of allowing a warrantless search and seizure incident to a lawful arrest is to protect the arresting officer from being harmed by the person arrested, who might be armed with a concealed weapon, and to prevent the latter from destroying evidence within reach. It is therefore a reasonable exercise of the State’s police power to protect (1) law enforcers from the injury that may be inflicted on them by a person they have lawfully arrested; and (2) evidence from being destroyed by the arrestee. It seeks to ensure the safety of the arresting officers and the integrity of the evidence under the control and within the reach of the arrestee. (People v. Calantiao, G.R. No. 203984, June 18, 2014)

Requisites

A warrantless search incidental to an arrest is valid when:

• The arrest is lawful;
• The item searched is in the arrestee’s custody or within the arrestee’s immediate control; and
• The search is contemporaneous with the arrest.

Lawful Arrest Must Precede the Search

General Rule: A search incidental to a lawful arrest requires that there must first be a lawful arrest before a search is made. Otherwise stated, a lawful arrest must precede the search; the process cannot be reversed. (Sapi v. People, G.R. No. 200370, June 7, 2017)

Exception: A search substantially contemporaneous with an arrest can precede the arrest if the police has probable cause to make the arrest at the outset of the search. (People v. Mariacos, G.R. No. 188611, June 16, 2010)

Scope of Warrantless Search

The scope of allowable warrantless search is limited to the area within which the person arrested could reach for a weapon or reach for evidence to destroy it. (Chimel v. California, 395 U.S. 752, June 23, 1969)

Moreover, in lawful arrests, it becomes both the duty and the right of the apprehending officers to conduct a warrantless search not only on the person of the suspect, but also in the permissible area within the latter’s reach. Otherwise stated, a valid arrest allows the seizure of evidence or dangerous weapons either on the person of the one arrested or within the area of his immediate control. The phrase "within the area of his immediate control" means the area from within which he might gain possession of a weapon or destructible evidence. A gun on a table or in a drawer in front of one who is arrested can be as dangerous to the arresting officer as one concealed in the clothing of the person arrested. (People v. Calantiao, G.R. No. 203984, June 18, 2014)

In Valeroso, however, the Court held that the evidence searched and seized from him could not be used against him because they were discovered in a room, different from where he was being detained, and was in a locked cabinet. Thus, the area searched could not be considered as one within his immediate control that he could take any weapon or destroy any evidence against him. (People v. Calantiao, G.R. No. 203984, June 18, 2014)

Under Rule 126, Sec. 13, a search incident to lawful arrest may cover the arrestee’s person and the area within the arrestee’s immediate control, but not a separate area beyond that reach. The narrower formulation in Nolasco should not be read to exclude the area within the arrestee’s immediate control. (Nolasco v. Pano, G.R. No. L- 69803, Jan. 30, 1987)

What May Be Searched

Assuming a valid arrest, the arresting officer may search the person of the arrestee and the area within which the latter may reach for a weapon or for evidence to destroy, and seize any money or property found which was:

• Used in the commission of the crime, or
• The fruit of the crime, or
• That which may be used as evidence, or
• Which might furnish the arrestee with the means of escaping or committing violence. (People v. Comprado, G.R. No. 213225, April 4, 2018)

Concept

An officer may seize an object without a warrant under the plain-view doctrine when the officer is lawfully in a position to see it, has lawful access to it, and its incriminating character is immediately apparent.

Updated: Plain-view seizure requires a prior justification for the officer’s intrusion and an inadvertent encounter with incriminating evidence (People v. Bautista, G.R. No. 255749, 15 October 2025).

Requisites

The plain-view doctrine applies when all of the following are present:

• A prior valid intrusion or another lawful basis places the police where they can see the object while performing their official duties.
• The police, who have a right to be there, discover the evidence inadvertently.
• Its evidentiary character is immediately apparent.
• What the police see in plain view justifies seizing the evidence without a further search. (People v. Compacion, G.R. No. 124442, July 20, 2001)

Immediately Apparent Requirement; Probable Cause

The immediate requirement means that the executing officer can, at any time of discovery of the object or the facts therein available to him, determine probable cause of the object’s incriminating evidence. Probable cause must be the direct result of the officer’s instantaneous sensory perception of the object. The immediately apparent test does not require an unduly high degree of certainty as to the incriminating character of the evidence. (United Laboratories v. Isip, G.R. No. 163858, June 28, 2005)

It is undeniable that the seizure of the prohibited items in this case was valid under the "plain view" doctrine, for which the following requisites concur: (a) the law enforcement officer in search of the evidence has a prior justification for an intrusion or is in a position from which he can view a particular area; (b) the discovery of evidence in plain view is inadvertent; (c) it is immediately apparent to the officer that the item he observes may be evidence of a crime, contraband or otherwise subject to seizure.

In this case all the elements of plain view were established. First, the police officers were conducting a routine checkpoint when they flagged down X, because he was committing several traffic infractions. Thus, the police officers had a prior justification for their act of flagging down X and their subsequent intrusion. Second, upon asking X for his registration papers, he voluntarily opened his utility box, and the two (2) sachets of shabu were plainly visible to the police officer Z. The discovery of the sachets was inadvertent and the illicit items were immediately apparent. Lastly, sachets containing white crystalline substance were confiscated since it appeared that the same could be evidence of a crime, contraband, or otherwise subject to seizure. This seizure of evidence justified the subsequent searches and the arrest of X. If not for the said plastic sachets, there would have been no valid reason to search or frisk X as his traffic violations were punishable only by fine. His traffic violations per se did not justify a search incidental to a lawful arrest as there was as yet no lawful arrest to speak of. (De Villa y Guinto v. People, G.R. No. 224039, Sept. 11, 2019.)

Plain View as a Distinct Ground for Warrantless Seizure

The plain-view doctrine permits the warrantless seizure of an item outside the scope of an otherwise justified intrusion when the officer is lawfully in a position to see it and its incriminating character is immediately apparent. It serves to supplement the prior justification – whether it be a warrant for another object, hot pursuit, search incident to lawful arrest, or some other legitimate reason for being present unconnected with a search directed against the accused – and permits the warrantless seizure. (People v. Calantiao, G.R. No. 203984, June 18, 2014)

Plain View Doctrine Not Applicable When Evidence Discovered in the Course of a Search

The seizure of the passports, bankbooks, checks, typewriter, check writer, dry seals and stamp pads and other assorted documents does not fall within the “plain view” exception. The assertions of the police officers that said objects were “inadvertently” seized within their “plain view” are mere legal conclusions which are not supported by any clear narration of the factual circumstances leading to their discovery. The supposed illegal character of the items claimed to have been seized within the “plain view” of the policemen was not readily and immediately apparent.

Rather, the suspicions of the policemen appear to have been aroused by the presence of the numerous passports and immigration documents which they discovered in the course of their search. (People v. Go, G.R. No. 144639, Sept. 12, 2003)

Exigent and Emergency Circumstances

In the event of a coup d’etat conducted by the “Reform the Armed Forces Movement Soldiers of the Filipino People”, the EUROCAR Building was put under surveillance pursuant to an intelligence report that it housed large quantities of ammunition. During the operations, the car of the surveillance team was fired upon by 5 persons from a crowd within the vicinity of the EUROCAR Building. The team proceeded to the building without a warrant and was able to seize de Gracia and plenty of explosives and ammunition. The SC held that the arrests were impelled by the exigencies of the situation, which concerned the very survival of society and the government. In this case, the military operatives had reasonable ground to believe that a crime was being committed. The team had no opportunity to apply for a search warrant from the courts, as the court with jurisdiction, at that time, was closed due to disorder. (People v. De Gracia, G.R. Nos. 102009-10, July 6, 1994).

Concept

The rules governing searches and seizures have been liberalized when the object of a search is a vehicle for practical purposes. Police officers cannot be expected to appear before a judge and apply for a search warrant when time is of the essence considering the efficiency of vehicles in facilitating transactions involving contraband or dangerous articles. However, the inherent mobility of vehicles cannot justify all kinds of searches. Law enforcers must act on the basis of probable cause. (Sapi v. People, G.R. No. 200370, June 7, 2017)

Rationale

Securing a search warrant may be impracticable because the vehicle can be quickly moved out of the locality or jurisdiction in which the warrant must be sought. (Papa v. Mago, G.R. No. L27360, Feb. 28, 1968) [Citation for verification: the G.R. number may be L-27360.]

Visual Search – No Probable Cause Required

Thus, routinary and indiscriminate searches of moving vehicles are allowed if they are limited to a visual search. This holds especially true when the object of the search is a public vehicle where individuals have a reasonably reduced expectation of privacy. (Sapi v. People, G.R. No. 200370, June 7, 2017)

A search of a moving vehicle may either be a mere routine inspection or an extensive search. The search in a routine inspection is limited to the following instances:

• Where the officer merely draws aside the curtain of a vacant vehicle which is parked on the public fair grounds;
• Simply looks into a vehicle;
• Flashes a light therein without opening the car's doors;
• Where the occupants are not subjected to a physical or body search;
• Where the inspection of the vehicles is limited to a visual search or visual inspection; and
• Where the routine check is conducted in a fixed area. (Macad v. People, G.R. No. 227366, Aug. 1, 2018)

Extensive Search – Probable Cause Required

On the other hand, extensive searches are permissible only when they are founded upon probable cause. Evidence obtained through an extensive vehicle search conducted without probable cause is inadmissible under the constitutional exclusionary rule. (Sapi v. People, G.R. No. 200370, June 7, 2017)

That the object of a warrantless search is allegedly inside a moving vehicle does not justify an extensive search absent probable cause. Moreover, law enforcers cannot act solely on the basis of confidential or tipped information. A tip is still hearsay no matter how reliable it may be. It is not sufficient to constitute probable cause in the absence of any other circumstance that will arouse suspicion. (Sapi v. People, G.R. No. 200370, June 7, 2017)

When a vehicle is stopped and subjected to an extensive search, such a warrantless search has been held to be valid only as long as the officers conducting the search have reasonable or probable cause to believe before the search that they will find the instrumentality or evidence pertaining to a crime, in the vehicle to be searched. (Macad v. People, G.R. No. 227366, Aug. 1, 2018)

A confidential informer tipped the police that a Gemini car was going to deliver shabu. When they stopped the car, they saw a gun tucked in Tuazon’s waist. He did not have any documents, which strengthened the police’s suspicion. After he was told to step out of the car, they found plastic sachets containing shabu on the driver’s seat. These circumstances are sufficient to establish probable cause for the warrantless search of the car. Hence, the sachets of shabu may be admitted as evidence. (People v. Tuazon, G.R. No. 175783, Sept. 3, 2007)

Concept

A "stop and frisk" search is the act of a police officer to stop a citizen on the street, interrogate him, and conduct a limited pat-down of his outer clothing for weapons. (Sapi v. People, G.R. No. 200370, June 7, 2017)

Requisites (URIRA)

• Police Officer observes Unusual conduct.
• Reasonable suspicion that person is engaged in some type of criminal activity in light of experience.
• Identifies himself as a policeman upon approach.
• Makes Reasonable inquiries.
• There is reasonable fear for one’s own, or others’ safety. Thus, he is entitled to conduct a limited search of the outer clothing of such persons in an Attempt to discover weapons that might be used for assault. (Terry v. Ohio, 392 U.S. 1, June 10, 1968)

Scope

The allowable scope of a "stop and frisk" search is limited to a protective search of outer clothing for weapons. (Sapi v. People, G.R. No. 200370, June 7, 2017)

Totality of Suspicious Circumstances; At Least 2 or More Suspicious Circumstances

For a “stop and frisk” search to be valid, it must be supported by evidence such that the totality of the suspicious circumstances observed by the arresting officer led him/her to believe that an accused was committing an illicit act. (Telen v. People, G.R. 228107, Oct. 9, 2019)

To sustain the validity of a stop and frisk search, the arresting officer should have personally observed two (2) or more suspicious circumstances, the totality of which would then create a reasonable inference of criminal activity to compel the arresting officer to investigate further. (Manibog vs People, G.R. No. 211214, March 20, 2019)

The police officer must observe at least 2 or more suspicious circumstances. In this case, the prosecution failed to prove the legality of the warrantless arrest and the bare assertion that they caught X in flagrante delicto of illegal possession of a hand grenade is insufficient to clothe the police officers with the authority to restrain X’s liberty. PO3 Y suspicion based on the sight of a metal object is not sufficient to defeat X’s constitutional right to privacy. More importantly, the prosecution in this case failed to prove the existence of a hand grenade as no evidence was proffered on its chain custody. (Telen v. People, G.R. 228107, Oct. 9, 2019)

Updated: The statutory drug chain-of-custody rule does not extend to a hand grenade, but the prosecution must authenticate it as the object seized (Silvano v. People, G.R. No. 273931, 12 February 2026).

Probable Cause Not Required; But Genuine Reason Based on Experience

Law enforcers do not have unbridled discretion in conducting "stop and frisk" searches. While probable cause is not required, a "stop and frisk" search cannot be validated on the basis of a suspicion or hunch. Law enforcers must have a genuine reason to believe, based on their experience and the particular circumstances of each case, that criminal activity may be afoot. Reliance on one (1) suspicious activity alone, or none at all, cannot produce a reasonable search. (Sapi v. People, G.R. No. 200370, June 7, 2017)

Customs Search

The former Tariff and Customs Code of 1957 authorized persons having police authority under Section 2203 of the Tariff and Customs Code to enter, pass through or search any land, inclosure, warehouse, store or building, not being a dwelling house; and also to inspect, search and examine any vessel or aircraft and any trunk, package, or envelope or any person on board, or to stop and search and examine any vehicle, beast or person suspected of holding or conveying any dutiable or prohibited article introduced into the Philippines contrary to law, without mentioning the need of a search warrant in said cases. But in the search of a dwelling house, the Code provided that said dwelling house may be entered and searched only upon warrant issued by a judge or justice of the peace. Thus, except in the case of the search of a dwelling house, persons exercising police authority under the former customs law could effect search and seizure without a search warrant in the enforcement of customs laws. (Papa v. Mago, G.R. No. L-27360, Feb. 28, 1968) Under the Customs Modernization and Tariff Act, persons exercising police authority under Section 214 may conduct the customs searches authorized by Sections 219–223, subject to their statutory conditions.

Persons Exercising Police Authority

The following persons are authorized to effect search, seizure, and arrest:

• Officials of the Bureau, District Collectors, Deputy District Collectors, police officers, agents, inspectors and guards of the Bureau;
• Upon authorization of the Commissioner, officers and members of the Armed Forces of the Philippines (AFP) and national law enforcement agencies; and
• Officials of the BIR on all cases falling within the regular performance of their duties, when payment of internal revenue taxes is involved. (Customs Modernization And Tariff Act, § 214)

Authority to Enter Properties

Any person exercising police authority may, at any time, enter, pass through, and search any land, enclosure, warehouse, store, building or structure not principally used as a dwelling house.

When a security personnel or any other employee lives in the warehouse, store, or any building, structure or enclosure that is used for storage of goods, it shall not be considered as a dwelling house for purposes of this Act. (Customs Modernization And Tariff Act, § 219)

Authority to Search Vessels or Aircrafts and Persons or Goods Conveyed Therein

Any person exercising police authority under this Act may board, inspect, search and examine a vessel or aircraft and any container, trunk, package, box or envelope found on board, and physically search and examine any person thereon. In case of any probable violation of this Act, the person exercising police authority may seize the goods, vessel, aircraft, or any part thereof.

Such power to search includes removal of any false bottom, partition, bulkhead, or any other obstruction for the purpose of uncovering any concealed dutiable or forfeitable goods.

The proceeding herein authorized shall not give rise to any claim for damage caused to the goods, vessel or aircraft, unless there is gross negligence or abuse of authority in the exercise thereof. (Customs Modernization And Tariff Act, § 221)

Authority to Search Vehicles, Other Carriers, Persons and Animals

Upon reasonable cause, any person exercising police authority may open and examine any box, trunk, envelope, or other container for purposes of determining the presence of dutiable or prohibited goods. This authority includes the search of receptacles used for the transport of human remains and dead animals. Such authority likewise includes the power to stop, search, and examine any vehicle or carrier, person or animal suspected of holding or conveying dutiable or prohibited goods. (Customs Modernization And Tariff Act, § 222)

Authority to Search Persons Arriving From Foreign Countries

Upon reasonable cause, travelers arriving from foreign countries may be subjected to search and detention by the customs officers. The dignity of the person under search and detention shall be respected at all times. Female inspectors may be employed for the examination and search of persons of their own sex. (Customs Modernization And Tariff Act, § 223)

Airport Searches

The search was made pursuant to routine airport security procedure, which is allowed under Section 9 of Republic Act No. 6235 reading as follows:

SEC. 9. Every ticket issued to a passenger by the airline or air carrier concerned shall contain among others the following condition printed thereon: "Holder hereof and his hand-carried luggage(s) are subject to search for, and seizure of, prohibited materials or substances. Holder refusing to be searched shall not be allowed to board the aircraft," which shall constitute a part of the contract between the passenger and the air carrier.

This constitutes another exception to the proscription against warrantless searches and seizures. As admitted by SUSAN and shown in Annex "D" of her Brief, the afore-quoted provision is stated in the "Notice to All Passengers" located at the final security checkpoint at the departure lounge. From the said provision, it is clear that the search, unlike in the Terry search, is not limited to weapons. Passengers are also subject to search for prohibited materials or substances.

In this case, after the metal detector alarmed SUSAN consented to be frisked, which resulted in the discovery of packages on her body. It was too late in the day for her to refuse to be further searched because the discovery of the packages whose contents felt like rice granules, coupled by her apprehensiveness and her obviously false statement that the packages contained only money, aroused the suspicion of the frisker that SUSAN was hiding something illegal. It must be repeated that R.A. No. 6235 authorizes search for prohibited materials or substances. To limit the action of the airport security personnel to simply refusing her entry into the aircraft and sending her home (as suggested by appellant), and thereby depriving them of "the ability and facility to act accordingly, including to further search without warrant, in light of such circumstances, would be to sanction impotence and ineffectivity in law enforcement, to the detriment of society." Thus, the strip search in the ladies’ room was justified under the circumstances. (People v. Canton, G.R. No. 148825, Dec. 27, 2002)

Concept

A checkpoint search is a variant of a search of a moving vehicle. Checkpoints per se are not invalid. They are allowed in exceptional circumstances to protect the lives of individuals and ensure their safety. They are also sanctioned in cases where the government's survival is in danger. Considering that routine checkpoints intrude on a motorist's right to 'free passage’ to a certain extent, they must be conducted in a way least intrusive to motorists. (Sapi v. People, G.R. No. 200370, June 7, 2017)

Routine checkpoint inspections must be minimally intrusive, ordinarily limited to a visual inspection without a body search or extensive vehicle search. A more extensive vehicle search requires an applicable justification, such as probable cause; “abnormal times” is not a requisite. (Valmonte v. Gen. De Villa, G.R. No. 83988, September 29, 1989)

Limited to a Visual Search; Vehicle and Body Search Not Allowed

The extent of routine inspections must be limited to a visual search. Routine inspections do not give law enforcers carte blanche to perform warrantless searches. (Sapi v. People, G.R. No. 200370, June 7, 2017)

For as long as the vehicle is neither searched nor its occupants subjected to a body search, and the inspection of the vehicle is limited to a visual search, said routine checks cannot be regarded as violative of an individual's right against unreasonable searches. Thus, a search where an officer merely draws aside the curtain of a vacant vehicle which is parked on the public fair grounds, or simply looks into a vehicle, or flashes a light therein is not unreasonable. (Sapi v. People, G.R. No. 200370, June 7, 2017)

Extensive Search Allowed When Probable Cause Present

However, an extensive search may be conducted on a vehicle at a checkpoint when law enforcers have probable cause to believe that the vehicle's passengers committed a crime or when the vehicle contains instruments of an offense. (Sapi v. People, G.R. No. 200370, June 7, 2017)

Exclusive reliance on information tipped by informants goes against the very nature of probable cause. A single hint hardly amounts to the existence of such facts and circumstances which would lead a reasonably discreet and prudent man to believe that an offense has been committed and that the objects sought in connection with the offense are in the place to be searched. The finding of probable cause should be premised on more than just the initial information relayed by assets. It was the confluence of initial tips and a myriad of other occurrences that ultimately sustained probable cause. In this case, a radio message cannot be the sole basis of the finding of probable cause to warrant the extensive search of the accused’s vehicle at the police checkpoint. (People v. Yanson, G.R. No. 238453, July 31, 2019)

Warrantless Search by a Private Individual

If the search is made at the behest or initiative of the proprietor of a private establishment for its own and private purposes, and without the intervention of police authorities, the right against unreasonable search and seizure cannot be invoked for only the act of a private individual, not the law enforcers, is involved. In sum, the protection against unreasonable searches and seizures cannot be extended to acts committed by private individuals so as to bring it within the ambit of alleged unlawful intrusion by the government. (People v. Marti, G.R. No. 81561, Jan. 18, 1991)

REASONABLE SEARCH V. WARRANTLESS SEARCH

A reasonable search, on the one hand, and a warrantless search, on the other, are mutually exclusive. While both State intrusions are valid even without a warrant, the underlying reasons for the absence of a warrant are different. (Saluday v. People, G.R. No. 215305, April 3, 2018)

Reasonable Search

A reasonable search arises from a reduced expectation of privacy, for which reason Section 2, Article III of the Constitution finds no application. Examples include searches done at airports, seaports, bus terminals, malls, and similar public places. (Saluday v. People, G.R. No. 215305, April 3, 2018)

Warrantless Search

In contrast, a warrantless search is presumably an "unreasonable search," but for reasons of practicality, a search warrant can be dispensed with. Examples include search incidental to a lawful arrest, search of evidence in plain view, consented search, and extensive search of a moving vehicle when officers have probable cause to believe it contains contraband or evidence of a crime. (Saluday v. People, G.R. No. 215305, April 3, 2018)

REASONABLE SEARCH: BUS SEARCHES (Saluday v. People, G.R. No. 215305, April 3, 2018)

Prior to Entry

Before entering a bus terminal, passengers and their bags and luggage may undergo routine security inspection similar to that at airports and seaports. The terminal may use metal detectors and X-ray scanners, and passengers may be frisked. If electronic scanners are unavailable, passengers may instead be required to open their bags and luggage for inspection in their presence. A passenger who objects may be refused entry to the terminal.

While a bus is in transit, government agents or the bus owner’s security personnel may inspect it in these circumstances:

• After receiving information that a passenger is carrying contraband or illegal articles, they may stop the bus en route to inspect that passenger and the passenger’s effects. This is comparable to requiring an airplane to land after receiving such information about a person on board.
• When a bus picks up a passenger en route, government agents or private security personnel may frisk the prospective passenger and conduct the same routine inspection of the passenger’s bag or luggage as they would at the terminal. Unlike an airplane, a bus can pick up passengers along its route who have not undergone terminal security inspection.
• At a designated military or police checkpoint, State agents may flag down the bus and board it for a routine inspection of passengers and their bags or luggage.

Applies to Other Vehicles

Aside from public transport buses, other public-transport vehicles that accept passengers at terminals and along their routes, but not privately owned cars or taxis, are likewise covered by these guidelines. Hence, whenever compliant with these guidelines, a routine inspection at the terminal or of the vehicle itself while in transit constitutes a reasonable search. Otherwise, the intrusion becomes unreasonable, thereby triggering the constitutional guarantee under Section 2, Article III of the Constitution.

REASONABLE SEARCH: PORT SEARCHES

Searches pursuant to port security measures are not unreasonable per se. The security measures of x-ray scanning and inspection in domestic ports are akin to routine security procedures in airports. The reason behind the exception to the prohibition against warrantless searches is that there is a reasonable reduced expectation of privacy when coming into airports or ports of travel.

Actual inspection upon showing of probable cause that a crime is being or has been committed is part of reasonable security regulations to safeguard the passengers passing through ports or terminals. Any perceived curtailment of liberty due to the presentation of person and effects for port security measures is a permissible intrusion to privacy when measured against the possible harm to society caused by lawless persons.

Thus, when the results of the x-ray scan revealed the existence of firearms in the bag, the port authorities have probable cause to conduct a search of the person’s bag. (Dela Cruz v People of the Philippines, GR 209387, Jan. 11, 2016)