The Police as Pigs
Interestingly, John Lennon and Yoko Ono organized the recording of a song by the Electric Oz Band to gain publicity for the case and raise funds for the defense. The resulting single (Apple Records 36) featured two tracks, "God Save Us" and "Do the Oz." John Lennon's original vocals on the A-side track were replaced by those of Bill Elliot (from Half-Breed and Splinter) for the 7" release.
See what happens when you start looking for the history of the association of pigs with police?