why are you limiting this to california cities? yes, you're right, it's not just LA, but pretty much any policing agency of significant size. location doesn't matter. i will gladly accept i'm painting with an overly large brush if someone can show counter evidence of a decent sized police force where similar is NOT occurring.
Edit (to the downvoters):
https://en.wikipedia.org/wiki/List_of_unarmed_African_Americ...