The girl, who is not being identified, was 7 when the incidents are alleged to have taken place.
According to prosecutor Collin Brennan, agents searched Stewart's storage shed and found girls' underwear that contained "three different male DNA detections … one being of the defendant," the Journal reported.
The attorney general’s office opened an investigation after a school employee at Lew Wallace Elementary School contacted agents to report her suspicion that the student was being trafficked, the newspaper reported.
In addition to the allegations of inappropriate behavior, the girl testified she asked strangers to buy her food, KOB reported.
“We had to panhandle. Dad took half of the money and gave the other half to Mom,” the girl testified.
The trial is expected to last all week, KRQE reported.