The plaintiff's claim in a warrantless false arrest lawsuit arose from a sheriff s deputy s visit to her house to check on the welfare of her daughter. Arresting without a warrant.Police cannot arrest you without a warrant, or without probable cause a crime occurred or is currently in progress. Did you know that police can lawfully enter your home and search it without a warrant? A false arrest claim under federal law requires a plaintiff to prove that the arresting officer lacked probable cause to arrest the plaintiff. Defendant characterizes Plaintiff's Complaint as possibly encompassing false arrest, false imprisonment, and malicious prosecution claims. You have legal options if you have been brought up on false criminal charges. No two cases are the same. An officer must either have a warrant or reasonable suspicion that a person has committed or is about to commit a crime (probable cause). (E) order that the defendant be arrested and brought before the nearest appropriate magistrate in the county of arrest.