List of police-related slang terms

Many police-related slang terms exist for police officers. These terms are rarely used by the police themselves.
Police services also have their own internal slang and jargon; some of it is relatively widespread geographically and some very localized.
Billy Filth was common term for police in south London (used mostly by West Indian population) in 1960s and 1970s. Pronounced 'filt ' or 'filf ', depending on ethnic background . Origins obvious. Apparently used earlier to describe sons of policemen.