Arrest - When the police take a person into custody on probable cause with or without a warrant. Arrest without a warrant: a.For an offense when reasonable cause to believe offense committed in his presence, or. The Fourth Amendment was the founding generation's response to the reviled 'general warrants' and 'writs of assistance' of the colonial era. A police officer may arrest a person for an offense, pursuant to section 140.10, at any hour of any day or night. The term means the warrantles taking of another into physical custody and detaining the person against his or her will under threat of force. Police officers make many arrests in King County without an arrest warrant. When police officers observe a crime directly, they can make an arrest. We can also enter without a search warrant to execute an arrest warrant. Or if given permission, of course.