Identified common characteristics of victims of inmate-on-inmate rape are being young or youthful in appearance; smaller stature/build and possibly physical disability; past victim of sexual assault; first incarceration or first time in a particular facility; homosexual or transgender; mental illness, learning disability, or lower I.Q.; low self-confidence or projection of fearfulness and passivity; no gang affiliation; and a criminal history of prostitution or sex offense or less serious crime. Common characteristics of victims in staff-on-inmate sexual victimization are self-confidence; habitual, "street smart" offender; and serving a longer term. Identified common characteristics of inmate perpetrators of the rape of other inmates are larger stature/build; past victim of sexual assault; experienced repeat offender; history of violence, including sexual assault; creditor of the victim (extortioner); desire for power/control; verbal, aggressive, extroverted; extreme self confidence; manipulative, using knowledge of psychology; serving a longer term; gang affiliation; and mentally challenged. Identified common characteristics of staff perpetrators of jail rapes are low self-esteem, insecurity, and depression; family relational problems; financial problems; knew the inmate victim prior to incarceration; desire for power/control; excessive interest in the inmate's case (feels sorry); romantically attracted to inmate (more likely for female officers); and previously smuggled contraband to the extorting inmate victim. The report also lists the common characteristic of jail systems with a high or low prevalence of sexual assault, as well as the unique characteristics of jails with a high prevalence of rape. Best practices for lessening the risk of rape in U.S. jails are also listed. 144 notes