Warning shot

Warning Shot is a 1967 film about a police sergeant who kills a man while on a stakeout, then must prove that it was self-defense. It is based on the novel 711 - Officer Needs Help by Whit Masterson.

A warning shot is a military and/or police term describing an intentionally harmless artillery shot or gunshot with intent to enact direct compliance and order to a hostile perpetrator or enemy forces. It is recognized as signalling intended confrontations on land, sea, and air.