What dooes it when when someone from England says "Hello Hello Hello"?

It's a sort of joke about the old British 'bobbies' (from Robert Peel by the way, who formed the first police force in England). When they came across something suspicious or a crime in progress, they'd say, "Hello, Hello, Hello", meaning, "What 'ave we 'ere then?" (in fact they would follow up "Hello........" with that phrase!)

You will usually hear it said in old British comedies of the 1940s and 50s

Yes it is used in a semi comical way . Also used by a old policeman character ,,D ixon of Dock Green . Sort of a quizzical thing to mean Hello whats going on here then ? yes there are certain differences in words , spelling and meanings but not all that important .

I think it's from the old Music Hall times when a policeman would come on to the stage as part of the act and say " Hello Hello Hello wot 'ave we 'ere then ?" while pretending to look at a crime.

Its an old term that English policemen were reputed to use a lot when they came across someone they wanted to talk too.

Of course they never really used it but you hear it used a lot when actors are depicting English Policemen in usually humorous situations

it means 'Hello'...

just slightly more sarcastic like what are you up to ect, which is why stereotypically, policemen say it.

allthough it probably hasnt been used in 50 years now :P

It doesnt mean anything - just Hello! ?????