My thanks to the indefatigable Chandrapal S Bhasker and the Facebook site https://www.facebook.com/groups/antifeminism for alerting people to the following reports from the US:

“Approximately 95% of all youth reporting staff sexual misconduct said they had been victimized by female staff. In 2008, 42% of staff in state juvenile facilities were female.”

Sexual Victimization in Juvenile Facilities Reported by Youth, 2008-09

http://bjs.gov/content/pub/pdf/svjfry09.pdf

“Most victims of staff sexual misconduct were males; most perpetrators were females. Among male victims of staff sexual misconduct, 69% of those in prison and 64% of those in jails reported sexual activity with female staff. An additional 16% of prison inmates and 18% of jail inmates reported sexual activity with both female and male staff.”

“Among inmates who reported inmate-on-inmate sexual victimization, 13% of male prison inmates and 19% of male jail inmates said they were victimized within the first 24 hours after admission, compared to 4% of female inmates in prison and jail.”

http://bjs.gov/content/pub/pdf/svpjri0809.pdf