I think they are perfect candidates for testing. Especially the ones on death row. They spend their lives and our tax dollars while they sit on death row for years.
I'm sure you are one of those that think Sadaam Hussein didn't deserve to be hanged and should live out his days eating Doritos.
Are you talking about violent crimes or any criminal? I did a database search on an old friend and found out he had been in jail for a while. It was not a violent crime, though.