The only thing I've experienced that was close to this was cops taking our beer when I was in HS. They'd let us go, but they seized the beer.. and drank it themselves at their cop parties.
It pissed us off, because hell... it was hard to get beer. We couldn't exactly just run to QT and buy more. It was hard to get too pissed though, due to the whole "not taking us to jail" thing...
Drug penalties are severe. The people this guy busted most likely did some real time. Meanwhile he's getting high in the station.
Some people just have no conscience..
