In UK we sent over 100 people to jail because software was buggy, said they stole money, a private company knew about the problem but lied under oath and nobody checked.

the chance that anyone would ever discover that someafiles were planted by an arm of the state seems to be zero.

https://en.m.wikipedia.org/wiki/British_Post_Office_scandal

Sure. But pedophilia is probably comorbid with psychological problems which lead people to believe they are in some kind of battle with the CIA, so one might expect it to appear a bit more commonly. No one's ever accused Jeffrey Sterling of being a pedo or rapist.