The moral basis for making good decisions has been systematically destroyed by government. So, you’re a fatherless child raised in government mandated poverty (as you can’t collect if you’re married or employed.) You look around and what role model do you see? A priest or preacher working to help people? Nope. A thug with fancy clothes, a boffo car plenty of street cred and a job for YOU! Are we surprised that we take morality away and we end up with immoral people?
Probably cops who can’t write very well therefor a lot of crimes go unreported. It then shows up as a reduction in crime.
That would put a huge crimp in the violent crime rate across the country. It would also be unconstitutional, but at some point the law-abiding citizens of this country are going to have to make a decision about how much violent crime they're wllling to tolerate.