The police agencies can lie with impunity, but if you or I mis-remember something, it’s a punishable offense?
That is not right, nor just.
Most people see it that way.
It is a bit more nuanced.
But it has come to be another weapon that federal prosecutors use to hammer suspects into submission.
The really horrific use of this is as a political weapon, as was done to get rid of Senator Stevens (R) from Alaska, or in the Enron case, to destroy innocents for political points, or in the case of DeLay in Texas to remove a sitting Republican Representative.
Of course, Muller is the current horror.
Almost all instances of this as a political tool are examples of it being used against Conservatives.
Why? Because the Media still mostly protects the left.