I really can't answer that one. I'm not aware of specific issues of corruption, but then again, I haven't been looking for them as such.
Look, there are a couple of things here. There's the conspiratorial view of life, and there's the cock-up view of life. One side would say that, yes, there's corruption in the department, because people aren't doing things. It could also be just a reluctance for whatever reason. Maybe people don't feel supported in the work they're doing. It could be any number of factors.
I'm thinking from the perspective of a police officer: “Why aren't you enforcing that?” It's not necessarily because I'm corrupt; it could be because I'm not getting the support I needed in one respect or another.