What Is an arrest?
An arrest is the taking of a person into police custody for committing a criminal offense. An arrest can be made under either of the following conditions:
An Arrest Warrant
A judge or court magistrate issues the arrest warrant. It must be supported by a signed affidavit showing probable cause for a specific crime and the person(s) named in the warrant suspected of committing it. The warrant authorizes the arrest and detention of the person(s).
Probable Cause
Probable cause to arrest without a warrant exists when a police officer has valid reasons based on facts and circumstances that reasonably indicate that a person has committed a serious crime or is about to commit a crime.

What Happens During an Arrest
A person can be arrested anywhere – at home, in a car, or on the street. When you are placed under arrest, police officers will detain you, verify your identity, and take you into custody.