Here's more from The Seattle Times:
The girls said Michael Anthony Olivas, 35, told them that if they took off their clothes, he wouldn't call police about the shoplifting. They said he then took their photos with his cellphone camera while they were undressed. Olympia Police Lt. Jim Costa said Olivas' cellphone is being processed for evidence at the State Patrol Crime Lab.
Olivas was being held Wednesday at the Thurston County Jail with bail set at $10,000 after Superior Court Judge Gary Tabor found probable cause to order him held on suspicion of one count of unlawful imprisonment with sexual motivation.
Costa said that Olympia police have no record of Olivas taking the girls into custody after the alleged shoplifting of clothing at the J.C. Penney around Feb. 22. "We do not have a record that he notified our police department that he had people in custody," Costa said. Olivas did generate internal reports about the alleged shoplifting.