I liked the jokes about police bureaucracy scattered throughout it, e.g. perp jumps from 6 for window, appalled policewoman turns to junior colleague "Great! Do you realize how many extra forms we'll have to fill in now?".
Not a patch on a retired officer more comfortable in the private sector, Mike Ehrmantraut in Breaking Bad, which has just started up again.
Pol Pot was right, chemistry teachers are dangerous bastards.