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Criminal procedure

police encounters

There are generally three types of encounters persons can have with the police: (1) consensual encounters; (2) investigatory stops; and (3) arrests.

Consensual Encounter

A consensual encounter with the police occurs when a police officer approaches a person and initiates a conversation. A consensual encounter does not involve police commands, flashing lights, sirens, the threatening display of a weapon, blocking the suspect’s path, or other physical force or show of authority designed to restrain the person’s freedom or liberty.

Persons involved in consensual encounters with the police are free to leave or walk away at any time and have no obligation to communicate with the police or identify themselves.

Investigatory Stop

When the police do not have probable cause to arrest a person suspected of criminal activity—but do have reasonable suspicion the person is involved in criminal activity (a lesser standard than probable cause)—they may stop or detain the person to investigate whether a crime has been committed or is about to be committed—and may frisk or pat down the person to check for weapons.

Such an investigatory stop or Terry stop—named after the landmark U.S. Supreme Court case of Terry v. Ohio, 392 U.S. 1 (1968)—is permissible under the Fourth Amendment to the United States Constitution without a warrant because such a person has not been seized within the meaning of the Fourth Amendment.

The Supreme Court has suggested that a person is seized within the meaning of the Fourth Amendment when the police officer—by means of physical force or show of authority (siren, flashing lights, the threatening display of a weapon, blocking the suspect’s path)—has restrained the liberty of the person.

In other words, a stop becomes a seizure only if, in view of all of the circumstances surrounding the incident, a reasonable person would have believed he was not free to leave. And although a police officer may have the right to stop a person based on reasonable suspicion of criminal activity, the stop must be limited in time and scope, or it will become an lawful warrantless seizure, and any evidence gathered by the police during the encounter will not be admissible in evidence against the suspect.

Thus, a person involved in an investigatory stop with the police is not free to leave or walk away during the brief period of the encounter during which the police may reasonably conduct the investigation. A person in such an encounter may ask the police at any time “am I free to leave now?”

In determining whether there is reasonable suspicion to justify a stop-and-frisk encounter, the test for reasonableness is whether the police officer can identify specific and articulable facts which, taken together with rational inferences from those facts, would lead a reasonable person to conclude that possible criminal activity was in process and that both an investigative stop and a protective frisk or pat down for weapons was required.

Because the lawful purpose of a frisk or pat down during an investigative stop is the discovery of dangerous weapons that pose a threat to the police officer, the scope of the frisk or pat down must be limited to finding any such weapons.

A search for weapons during such an investigative stop is not necessarily limited to the body and clothing of the suspect and may extend to the passenger compartment (seating area, glovebox, console) of a car if the police officer has a reasonable belief, based on specific and articulable facts, that the suspect is dangerous and may gain immediate control of weapons.

And the U.S. Supreme Court has used a reasonableness analysis similar to that for investigative stops of a person when analyzing the reasonableness of an investigative detention of a person’s luggage (but not the person) at the airport—for the purpose of allowing a narcotics detection dog to inspect the luggage.

In one case, the Court distinguished such an investigative detention of a traveler’s luggage from an investigative detention of a traveler taken to an interrogation room on grounds of less than probable cause when the police took the traveler’s airplane ticket and retrieved his luggage without permission. Under those circumstances, the Court held, the encounter was not an investigative stop but an unlawful warrantless seizure.

Arrest

Arrest or custodial arrest is the process in which the police take physical possession or custody of a person whom they have probable cause to believe committed a criminal offense. Arrest is distinguishable from other circumstances in which the police stop, detain, or otherwise interact with persons because it is generally the point at which a person is not free to leave or walk away from the police.

Arrest is also the point at which some Constitutional rights and protections are provided to the accused. A person who is placed in handcuffs or otherwise physically restrained is clearly under arrest—but in some circumstances a person may be under arrest due to threats or intimidation from the police.

In Texas, as in other states, there are three primary types of police encounters: consensual encounters, investigatory stops, and arrests. During a consensual encounter, a police officer may approach a person and engage in conversation without any show of authority or force. The individual is not obligated to stay or respond and can leave at any time. An investigatory stop, also known as a Terry stop, occurs when an officer has reasonable suspicion of criminal activity. The officer can briefly detain the person to investigate and may conduct a frisk for weapons if there is a belief that the person is armed and dangerous. This stop is not considered a seizure under the Fourth Amendment, but it must be limited in time and scope. If it becomes too intrusive, it may be deemed an unlawful seizure, and any evidence obtained may be inadmissible in court. Finally, an arrest happens when an officer has probable cause to believe a person has committed a crime and takes the person into custody. At this point, the individual is not free to leave, and certain constitutional protections, such as Miranda rights, become applicable. These encounters are governed by both state statutes and federal law, including the Fourth Amendment to the U.S. Constitution, which protects against unreasonable searches and seizures.


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