Spoilers:
Waiting untill last season to reinstate him is a mistake and a big one from whoever decided that.
S3E13 the cop should have been fired in the episode and why doesn't he turn his lights on during the chase? What's even the purpose of having that car if not using it for the show?
A lot of small mistakes and firing the actress who did sharona was a deal braker for me, the ahow just lost someone important. Next time think before cutting special people cuz of money.