A few reviewers here have rated this as a 1 which I really don't understand. The performances from the actors are first rate and the direction is superb for a TV series. If you compare it with Luther which, don't get me wrong, is wonderful, it's far more believable and better acted. Alright, it has the annoying tendency of all British cop shows to have a "damaged" police officer as the main protagonist, and yes, the procedures aren't exactly accurate, but this is a TV series, not a documentary. If it followed a police officer's role to the letter it would be pretty damn boring. If you want to see something like that then the nearest you'll get to it is the excellent Scott and Baily. Everybody in this show shines. It even has the superb Eddie Marsen in it! I suspect that followers of the books will be a little miffed but as I haven't read the books I couldn't give a monkey's. It might be worth bearing in mind that a book and a TV series are two different things. As for me, I'm gutted they decided not to make more series.