TWIN FALLS, Idaho (AP) — A magistrate judge has ruled there is enough evidence against a south-central Idaho man charged with forcibly keeping a woman as a sex slave for 18 months to move the case to district court. The Times-News reports in a story on Wednesday that Magistrate Judge Thomas Kershaw made the decision after hearing testimony from the woman.The 27-year-old woman on Friday testified that 36-year-old Oscar Ayala-Arizmendi repeatedly raped her, beat her and held her against her will in a booby-trapped home. Ayala-Arizmendi is charged with first-degree kidnapping, rape and possessing a controlled substance. Under cross-examination by Ayala-Arizmendi's attorney, the woman said she sometimes drove around Buhl and could have gone to the police but didn't. Ayala-Arizmendi is being held on $1 million bail.