As of May 2017, two-thirds of federal inmates with serious mental illness (SMI) were incarcerated most often for four types of offenses: drugs (23%) and sex offenses (18%), followed by weapons and explosives (17%), and robbery (8%). Inmates with SMI were incarcerated for sex offenses, robbery, and homicide/aggravated assault at about twice the rate of inmates without SMI. Those with SMI were incarcerated for drug and immigration offenses at about half or less the rate of inmates without SMI. These findings were reported in “Federal Prisons: Information On Inmates With Serious Mental Illness & Strategies To Reduce Recidivism . . .