Longman Dictionary of Contemporary English
police force
noun
EXAMPLES FROM OTHER ENTRIES
▪ Ferdinand resigned from the police force last May.
EXAMPLES FROM CORPUS
▪ Bill Foley of the UC-Berkeley police force was one of the first to respond.
▪ The police force inherited by Nicholas was small, corrupt and ill-trained.
▪ The Houston police force was beset by charges of racism and brutality.
▪ The Lawson brothers retired from the police force in January.
▪ Time allowed 00:11 Read in studio A police force is testing a laser speed detector.
Wiktionary
police force
n. (context law enforcement English) Any police organization; a constabulary.
WordNet
police force
n. the force of policemen and officers; "the law came looking for him" [syn: police, constabulary, law]
Wikipedia
Police Force (pinball)
Police Force is a 1989 Williams pinball machine. The pinball machine was initially supposed to be released as Batman pinball, the police car was to be the Batmobile and the Jail was to be the Bat Cave. The machine features anthropomorphic jungle animals in the roles of police and robbers.