The Iowa Court of Appeals says a district court judge was wrong to suppress statements made to police by a man who walked into a police station saying he may have sexually assaulted a teenage girl.

Wednesday's decision allows prosecutors to continue their case against Ounheaun (OON'-yen) Cam, who is charged with assault with intent to commit sexual abuse.

Cam argued his statements to a Sioux Center police officer should have been suppressed because he was in custody and didn't knowingly waive his right to an attorney.

The appeals court found Cam was not in custody and did not ask about an attorney until after he had spoken to police.