Accept that crime is a facet of life.
People still speed and drive like idiots; you see it daily. Does that mean cops don't care?
People still murder. Detectives don't care? That's why?
Just because you don't see it with your own two eyes doesn't mean those in charge are apathetic.
You see the crime, you report it, you move on.
Yes, you may still be affected by the crime. Accept it and deal. You might still get in an accident on the freeway today, despite the DOT's best efforts to make freeways safe.
Life. Dig it.