[Drew68]

It would be interesting to run the numbers that the Innocence Project finds for innocent people vs. the number of persons they test.

I don't know the exact numbers but the Innocence Project vets cases very carefully and even then, the majority of the cases they take wind up confirming guilty verdicts.

[Theoria]

Yea, that sounds about right. On the other hand, being innocent in prison is probably hell on earth.