I Take This Oath is a 1940 American crime drama film directed by Sam Newfield under the pseudonym of Sherman Scott. Featuring Gordon Jones and Joyce Compton, it was the first release by Producers Releasing Corporation. In 1952, Pictorial Films reissued it for television showings as Police Rookie.

Plot

Police officer Mike Hanagan (Robert Homans) attempts to expose a fraudulent official who works with a gang of racketeers, but the official has Hanagan murdered. Hanagan's son Steve (Gordon Jones) decides to avenge his father, and at the suggestion of his girlfriend Betty Casey (Joyce Compton), he joins the police force.