Arrest without a warrant: a. For an offense when reasonable cause to believe offense committed in his presence, or.You mean temporarily detained, not arrested. An arrest is where they take you to jail and you remain in jail until you post a bond. If police start to search something of yours without a search warrant or your consent, do not attempt to stop them. You can be arrested for this. Arrest - When the police take a person into custody on probable cause with or without a warrant. While typically a warrant is required before police can search, there are instances in which the police do not need a warrant. It must state that the person is accused of some offense against the laws of the State, naming the offense. 3. Police officers are allowed to ask you certain questions and take certain investigative actions if you are in a public place or in a car.