Law enforcement personnel are not the law. The police makes "unlawful" requests and demands all the time, it's common for investigations. The desire to not coop

Law enforcement personnel are not the law. The police makes "unlawful" requests and demands all the time, it's common for investigations. The desire to not cooperate unless forced to (by law) does not make you a criminal, that should be perfectly clear. "No" is a fine and acceptable answer to many cooperation requests by law enforcement.