I agree that is why there are federal laws but I also think that is an
anachronism from a bygone time. There may still be a county or two in
Mississippi or Arkansas that has a corrupt judicial system but I think
the 24 hour news cycle shines a bright light on that kind of thing and
makes it go away.
I'm not so sure it is anachronistic...there are still states in the
south where I think "justice" is little more than a word. Texas comes to
mind.