Red might jump all over your ass for agreeing with human challenge trials.
I still say pick a selected group of non violent jailbirds with extensive sentences, offer them ten grand, early release, education and promise of a job. They are a captive Duhhh group with 24/7 constant observation and immediate access to treatment. Start with young healthy dudes, and it's just an OFFER. They don't have to accept.
I said before, if I was a young guy not very well liked, having gotten beat up a couple times, wondering if someone might stick me with a knife, and having virtually no chance for a "normal" life after parole, that might be the best - or only - chance for becoming a "normal" citizen. Define normal any way you like.