NASHVILLE, Tenn. -- Nashville's Free For Life Ministries began as a charity primarily devoted to stopping sex slavery in places including Romania and Tanzania by funding safe houses where girls could get away from their captors.

Video: Sex Slave Crimes Create New Problems

However, the global ministry has focused its attention back home after police have reported a rash of local sex slave cases, WSMV reported.

"We have cases come up all the time, but no one really knows about it because Hispanic illegal immigrants fear being deported," said sex-slave advocate Sara Sherman.

Recently, police in Memphis busted a sex slave brothel and investigators are still on the case of the 13-year-old Hispanic sex-slave in Brentwood -- who said she went through unimaginable things.

This week, a 22-year-old woman told police she was driven from state to state and forced to have sex with up to seven men a day.

Police said two men were arrested and have agreed to plead guilty in her case. Jesus Garcia and Arturo Perez will serve just six months in jail and then face deportation.

"There are no safe houses here so they are not even able to heal. It's not good enough," said sex-slave advocate Cecilia Hilton.

A new sex-slave law that recently went into effect in Tennessee carries an 8 to 12 year sentence.