a guardian investigation has found that traffickers who force them into prostitution on their release . she claimed she was forced to work as a prostitute to pay off her bail debt and locked inside a house and beaten if kate had spent three years behind bars at lowell correctional institution , florida ’s largest women ’s prison , when the letters from richard rawls started to arrive . men had written to kate in prison before , but this time was different . america 's outcasts : the women trapped in a cruel cycle of exploitation read more pimps also use inmates in prisons and jails countrywide to befriend incarcerated women who , on their release , are trafficked into the $ 9.5bn ( £ 7.2bn ) us commercial sex industry . the letters promised kate a future she never met him , rawls made her feel special . he said one trafficking survivor from tampa , florida . over the course of the investigation , the guardian found cases of the bail bond system being used by pimps and sex buyers in florida , texas , ohio , north carolina and mississippi . traffickers are then bailing women out of detention . once released , the women are told they must work as prostitutes or have their bond rescinded and be sent back to jail .