police baton
A stick-like weapon, like a modern version of the club. They come in several different styles. Some are short with a loop on the end, meant to loop around the wrist and keep it from getting knocked from their hand in a fight. Others can collapse down to a shorter size and fit easily into a holster on the police_officer's belt.
While baton weapons could be wielded by anyone, they are closely associated with police officers. Both because they're often issued to police for use, and also because some countries prohibit anyone else from using one.
See also:
This tag implicates police (learn more).