@AC Re: Err...
"Let's say you were stupid enough to go out and leave your house unlocked. I walk in and have a good old rummage through your smalls drawer...no crime there then?"
No, actually there is no crime. There is a civil offence of trespass, but that is *not* a criminal offence!
And were you to claim (as the US did) that adding extra locks on each of your doors would cost $5000 per lock (or whatever their made-up figure was) simply to get the offence to be serious enough to warrant extradition, you'd be laughed out of court.