As part of a sweeping two-year investigation into prison labor, The Associated Press found that correctional staff nationwide have been accused of using inmate work assignments to sexually abuse incarcerated women, luring them to isolated spots, out of view of security cameras. Many cases follow a similar pattern: Accusers are retaliated against, while the accused face little or no punishment. Here are takeaways from the AP’s investigation : Though they represent only 10% of the nation’s overall prison population, female incarceration rates have jumped from about 26,000 in 1980 to nearly 200,000 today.

Most women have been locked up for nonviolent crimes that often are drug related. In all 50 states, reporters found cases where women said they were attacked by staff while doing jobs like kitchen or laundry duty inside correctional facilities or in work-release programs that placed them at private businesses such as national fast-food restaurants and hotel chains. Accused correctional staff often quit or retire before internal investigations are complete, sometimes retaining pensions and other benefits, experts say.

With no paper trail and severe staff shortages nationwide, some are simply transferred or hired at other facilities or they land positions overseeing vulnerable populations like juveniles. Even when allegations do lead to criminal charges, convictions can be rare, which also makes it possible for perpetrators to avoid placement on sex offender registries. The P.