From Daniel Kriegman: “A new study supports the conclusion that it is substance abuse that accounts for the increases in violence and not mental illness. Using recidivism of releasees (rearrest rate) as the target measure, the authors reviewed the data from 10,000 New Jersey state inmates released in 2013.
What they found was that those releasees who had been identified as having a mental illness but lacked a history of substance abuse had the lowest rate of recidivism, even lower than those who had no history of substance abuse and no diagnosis of a mental illness.”