The long arm of the plod.....

kowalski Interesting that 1750 got breathalised.
You don't get breathalised for being pissed in public I'm sure.
Else plod would just stand outside the pub, tool in hand.

Indeed. But it's just one way in which the police can do you for more or less anything if they're bored or just fancy - one reason I'm always super-polite to them if I ever have dealings with them.