Gonna go off topic here. But I've got a point to make.

It depends how much weed was on him. Half the time the cops don't find its worth the paper work. I know plenty of people back when I was at school who got caught with it. Just a tiny bit. All the cops do is keep it or throw it away infront of your face. It wastes too much police time. Since it's been downgraded here in England police work has been much more effective in other crimes. Only if enough is found on you thats good enough to deal is the only time the cops would ever do anything.