A Providence woman charged last year with bringing a 16-year-old girl to the Mashantucket Pequot reservation for a prearranged sexual encounter has been indicted on federal sex trafficking charges. 

Kaieema Gadson, 25, was arrested Monday and presented in U.S. District Court in Hartford, where Judge Donna F. Martinez ordered that she be detained. She is charged with two counts of sex trafficking with a minor. 

The indictment, which was returned by a grand jury in Hartford on Nov. 19, alleges that in December 2013, Gadson recruited, harbored and transported two minors to engage in commercial acts. 

Gadson has pending charges in New London Superior Court stemming from the December 2013 investigation. A joint task force of local, state and federal law enforcement agents conducted an investigation into prostitution at Foxwoods Resort Casino after receiving information about the pervasive use of online sites such as backpages.com to arrange paid sexual encounters. 

On Dec. 19, 2013, agents identified “several individuals knowingly engaged in prostitution” at Two Trees Inn, which is a tribe-owned hotel near Foxwoods Resort Casino on the Mashantucket Pequot reservation. 

Gadson, who previously had been targeted for trafficking minor females and promoting prostitution, was arrested for delivering a teenage girl to a prearranged location “with intentions of waiting for the individual to fulfill a sexual encounter for a fee,” according to a police report.