Three episodes in and to be honest I’m not entirely sure; it seems to lack any real substance and is a bit weak. But it's only three episodes and reviews seem to be pretty good, so I’ll keep plodding along.
On the subject of cops show, I’d really recommend The Unusuals which stars Jeremy Renner (Hurt Locker, The Town). It's really well written and the casting is spot on. Just a shame that they axed the show after one series.