Sharon worked in the Irvine PD from approx Janary 2014 thru about July? She was in Homicide, which Yami and I mentioned was an "Old Boys' Club" and that's why Sharon and D'Artagnan didn't get on there well. (They were partners.) He left to work at the Agency, and she was on her own for a while, then one of the Old Detectives pinched her backside, and she gave him a black eye, and quit on the spot. Then she started working for the Agency a few weeks later.
I would love it if she and Logan knew each other in the force, but that they never made the connection that either of them knew Veronica. What do you think? <3