You might think this is all about cops racing around in a menagerie of hot Japanese rally cars. If you're looking for high octane, high pitch commentary over endlessly repeated 60 second clips forget it. This is good, measured documentary making.
The fly-on-the-wall style follows the exploits of an Essex traffic cop team, this show mixes that feel-good detail on how the police go about their business with allowing characters to come through. Segments vary from following full operations from start to finish to those random moments where the police demonstrate the better side of judgement. Everything from routine traffic stops to drugs-busts to changing helicopter engines(!)
Over the top of this is Chris Fox's measured commentary. And unlike quite a few other shows he seems to know when to let the on-screen action speak for itself.