I didn't set out to watch a lot of Cop shows...it just sort of happened.
True Detective - best thing I've seen in a long time. Sick of people recommending trash while I search for something good to watch. Now I'm all set. The story jumps between now and 1995 where we follow two state police officers on a Homicide case.
Brooklyn Nine Nine - Sitcom set at the 99th precinct, follows a bunch of detectives. A few familiar faces - Terry Crews, Andy Samberg, Andre Braugher
Almost Human - Cop show set at some point in the Future, Karl Urban is the Human [he does the typical human stuff] who gets partnered with an Android. It's hard to decide if I like the show or if I just like watching KU acting like an asshole.