Being taken into custody without legal justification is generally called false arrest.

It usually happens when a police officer, security guard, or private citizen restrains someone without a valid warrant, without probable cause, or without other lawful authority. A person does not always have to be handcuffed and booked for it to count; if a reasonable person would believe they were not free to leave, an arrest may have happened. For example, stopping someone after a resort parking-lot collision or roadside incident is one thing, but holding them after the facts show no legal basis is another.

In practice, false arrest can lead to lost wages, humiliation, emotional distress, and extra costs that pile up fast, especially where medical bills and everyday expenses are high. It often overlaps with claims for false imprisonment, civil rights violations, or police misconduct. If force was used during the arrest, there may also be an excessive force claim.

For an injury claim, the key questions are usually why the arrest happened, what information officers had at the time, and whether the detention lasted longer than the law allowed. Many lawsuits are brought under 42 U.S.C. § 1983 for violations of the Fourth Amendment. In Wyoming, claims against government actors can also be affected by the Wyoming Governmental Claims Act, which has strict notice rules and deadlines.