Too many overzealous government officials out there who look for a promotion off the backs of convictions instead of the right conviction. In addition, DNA is clearing people these days.
Duke LaCrosse, Angela Corey, and Baltimore City's DA should open some people's eyes. That doesn't even get to the feds and the "just us" department.
The cause, re: your point, is that we no longer have a Republic. We the People have allowed the judiciary (govt) to run roughshod over us all.
In those cited instances, the over-zealous use the force, and $$, of State to prosecute OUTSIDE the law, quickly use the law and protection of their position when it is shown they have overstepped, and the State protecting their own when they give a wrist-slap that would have been YEARS/DECADES for the peons.
I have heard VERY little of govt being held to a higher standard and punished appropriately.
Where else but govt can one ‘quit’ to not risk prosecution; while keeping their bennies/etc.??