I am usually too late in watching these wires, and breaking bads etc. But what got me spur on to watch this was it was written by Jed mercurio who did one of my favourite TVA shows ever...Bodies and Cardiac arrest. Check both of those out if you want real medical drama.
Anyway he wrote this and its fantastic, some far fetched aspects, but i am finally on series 4 today after working through 1,2 and 3.
If you don't know, check it out, its about corrupt coppers.