It’c clear that the way to cut down black crime is not enforce the law. Presto! No black crime.
I was a Fed back in the day. At the end of the year, our success was measured in arrests and convictions.
About 35 years ago, we started a progressive effort to major in Prevention. Cases we used to work, now we walked away from. Others that counted on us to do that work soured on us.It created a lot of ill will, as others found their work loads had changed.
At the end of the year, the list of accomplishments became very creative.
Arrests in a certain area were down, thus those crimes were prevented. - Not so, it just meant the bad guys got a pass.
The criminal justice system starts with the initial arrest and investigation. Without that, criminal cases are not in court. And the mindset leads to what is going on right now - Clinton, Comey, McCabe, Lynch, the whole Clinton Foundation, unmasking and FISA mess.