and lie detectors work both ways....but they can not be entered in as evidence in any case either for the prosecution or against it....
Because it it not legal to do so. I was thinking the same thing you were, why is this posed as if this was a smoking gun?
Regardless, its a shame that this man spent 30 years in prison. The evil lying prosecutors need to lose their licenses and the he needs to sue the state.
Hoping I never have to face the choice, but if the police asked me to take a lie detector test "to prove my innocence", I'd say "No - look at the odds. 1) If I fail, due to nervousness or whatever, you'd say 'Game Over. We got him' and seek/build evidence along that line. 2) If it is 'inconclusive', I'm still under suspicion, and evidence to prove it would be accelerated. 3) I pass. Then it is 'The little weasel managed to beat the machine, bit we KNOW he did it.'"
I think I'd try, "OK, I'll take the test - providing YOU take one with an operator of my choice. You will be asked such questions as 'Have you ever knowingly prosecuted an innocent man, or faked evidence?"
And watch heads explode.