According to the latest surveys, in 2011 and 2012, 3.2 percent of all people in jail, 4.0 percent of state and federal prisoners, and 9.5 percent of those held in juvenile detention reported having been sexually abused in their current facility during the preceding year.
Contrary to common belief, and most importantly, the report in the New York Review of Books reveals:
The new studies confirm previous findings that most of those who commit sexual abuse in detention are corrections staff, not inmates. That is true in all types of detention facilities, but especially in juvenile facilities. The new studies also confirm that most victims are abused repeatedly during the course of a year. In juvenile facilities, victims of sexual misconduct by staff members were more likely to report eleven or more instances of abuse than a single, isolated occurrence. By far the two biggest risk factors for sexual abuse in all kinds of detention facilities are being “non-heterosexual,” as the BJS puts it, and having a history of sexual victimization that predates the inmate’s current incarceration.” [my emphasis]