The Oakland PD is corrupt and incompetent. This has been well-documented in the local media, and there has been at least one FBI investigation into the matter. This is part of the reason why the main red light district is in Oakland, not SF.
As far as I can tell, no one has the will, political or otherwise, to take steps towards a remedy.
It isn't just the police department. The state had to come in and run the schools after the school district went bankrupt.
Did I mention that Ebonics as a second language originates from Oakland? When they were rolling up the 60s, a lot of the batshit insane got swept towards Oakland, and it has been festering ever since.