As mentioned, nothing new.
Before he retired from teaching, I worked with retired LAPD detective supervisor who had run a surveillance team out of their internal affairs bureau. A couple times, he talked at length about the actual guilty parties in the Rampart drama - Dennis Mack & Rafael Perez - as well as a number of other gang membbers the department had hired after '91. Surveillance on cops frequently meeting with individuals or groups of individuals who were high up in various continuing criminal enterprises that liked one color or another and not having valid reason for doing so. Conversations with the administrator above the bureau, some dude named Parks, didn't result in any hiring changes.
A while back went through some crime scene photos of gangsters. Found one that always makes me laugh - the guy is a cop at a nearby agency. We wouldn't hire him - for good reason. Also in that stack is gal who is high up in the billing department of a local hospital.