I love it when the police want to arrest someone so badly that they just fabricate a law on the spot.  Popular ones include "Obstruction of a Police Officer" when people won't answer the cop's questions or "failing to obey a police officer" when people won't do what the copy wants. 

This officer comes out with a good one:  "making false allegations toward a police officer" and then arrests her for accusing him of doing something wrong.  One would think that a sitting judge watching it happen might remind the officer that no such crime exists, but instead the judge just turns her head while a woman is arrested for something that isn't a crime.

Full story here.