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- Hack
- A prison guard (Example: Richie: The other one, Mark Mack, is already dead. Besides, why should the hacks listen to me now? I say Schillinger did it, they say prove it. I have no proof. (Richie from the HBO Series OZ) )
- Harness Bull
- American; a uniformed police officer. Example: ...a large harness bull arrived in his archaic blue uniform with gun and star. (Philip K Dick, from Do Androids Dream of Electric Sheep?, 1968)
- The Heat
- American; putting the heat on someone. (Example: in the line What a field day for the heat (Stephen Stills, "For What It's Worth" from Buffalo Springfield, 1967), Stills is referring to the police.)
- Heavy or Heavies
- Cockney rhyming slang for the Flying Squad, from the Heavy Mob, (see also Sweeney).
- Hekus
- Hungarian, perhaps come from Yiddish.
- Helicopper
- Australian, Police Helicopter
- Hi-Po
- American abbreviated slang referring to the Highway Patrol.
- Hobby-Bobby
- Used in England to refer to Special Constables, who work for the police and wear the same uniforms. The nickname implies such people are working as police officers as a hobby or pastime.
- The Hook
- American: Refers to the hook used in cartoons to snatch someone from a stage.
- Horseman
- A Canadian term referring to the Royal Canadian Mounted Police. Variation: Mounties.
- Hot Dogs
- a Chinese term referring to stationary traffic cops and guards who are standing in the sun all day.
Read more about this topic: List Of Police-related Slang Terms