I have a hard time believing that Sessions is this ignorant of history that he sincerely believes less oversight will equal better law enforcement.  We have over a hundred of years of history that demonstrates how unreliable states are at self-regulating civil rights violations particularly in the area of law enforcement.  This doesn't even begin to go into the amount of video proof via smartphones of "deficient training"/excessive force that's brought proof to light about systemic failures.
I wonder if this means the federal government will stop providing for body cams.