Green’s Dictionary of Slang

a police officer.

1989		J. Morton Lowspeak.
1999		Guardian Sport 12 Feb. 16: I open my eyes to see a pair of Dibble at the end of my gently wobbling place of rest.
2000		Guardian Sport 19 Feb. 12: ‘As you’ll appreciate, this is a very serious matter,’ says one of the dibble.
2000		Guardian 18 Mar. 12: I was the first player the dibbs interviewed.
2016		Times 24 Nov. 🌐 I thought the national stats folks had given Dibble a poke in the eye because they can't record crimes properly.