Dr. Josiah Rich, Brown University (IMAGE) Brown University Caption Dr. Rich, who led a randomized controlled trial testing the effect of allowing prisoners to remain on methadone, found that doing so increases the likelihood prisoners will engage in the treatment after release. Credit Michael Cohea/Brown University Usage Restrictions with credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.