Impersonating a police officer
In my first year of uni we all lived in blocks of flats near Central London. We were always getting up to mischief, and one day a mate and I decided to pull a huge prank. We printed off a letter, supposedly from the Metropolitan Police, with full letter headers and (stupidly) real police address and phone number to reply to. Anyway, we stuck the letter on a car which was parked outside our flat. We also got hold of some of that police tape, which says 'Police Line - DO NOT CROSS' on it, and wrapped it around the car using four traffic cones.
The letter read something like:
"Dear Sir/Madam,
As a result of a routine police dog search through the area, we have reason to believe that there are traces of Class A substances in your vehicle. We have cornered-off your vehicle and ask you to co-operate with us in our investigation of drug abuse.
Please do not attempt to remove the vehicle. Instead, you should contact us using the details provided.
Yours,
The Met Police"

so, the car stayed there for about a week. we all thought that this was extremely funny until our entire block of flats had to undergo police questioning down at the local nick, because one of us was suspected of 'impersonating a police officer' and 'perverting the law'.

they never knew it was me or my mate.... but we all got asked to donate to the £1000 fine they slapped on our university.
(meek, Wed 7 Jan 2004, 20:49, Reply)