<name of person> police officer 3 realizations
ACCEPTED Realization 1
type Polysemy
language English
lexeme Bobby
meaning 1 diminutive of Robert
direction
meaning 2 (Britain) police officer
reference Harper's Etymonline
comment From the given name of Sir Robert Peel, who established London’s police force
ACCEPTED Realization 2
type Derivation
language English
lexeme 1 Bill
lexeme 2 Old Bill
meaning 1 given name
direction
meaning 2 (British, slang) police officer
reference OED
comment
ACCEPTED Realization 3
type Polysemy
language English
lexeme 1 Dibble
lexeme 2 dibble
meaning 1 family name
direction
meaning 2 (slang, British, originally Manchester) police officer, especially one serving with Greater Manchester Police

Remember this story about police hunting a metal detector enthusiast suspected of digging 20 holes in a school playing field in Cornwall? It’s taken a rather unusual twist. Pop superstar Robbie Williams appears to have ’fessed up to the crime. The former Take That star, who is a keen metal detecting enthusiast, retweeted the West Briton newspaper’s version of the story, telling ‘Dibble’ – a Mancunian slang term for the police which comes from the character Officer Dibble in the cartoon Top Cat – to ‘do one’, vowing the police will never catch him alive.

2016 May 12, “maxc73”, “Robbie Williams ‘confesses’ to digging holes in school’s playing field”, in The Herald‎, Plymouth, Devon http://www.plymouthherald.co.uk/robbie-williams-confesses-digging-holes-school-s/story-29265330-detail/story.html

reference OED English Wiktionary
comment

Preceded by the 'the police': Watch out, lads! Here comes the dibble!