A federal investigation is underway into a disturbing incident at an Adelaide Hills nursing home. The incident involves two residents a nursing home at Strathalbyn, one of whom is a woman with advanced dementia. She was reported missing from her room by staff on the night of February 27 and was found naked a short time later in the room of a male resident. The door was barricaded shut with a wheelchair, a chair and an overway table – and that the male resident had a history of sexually inappropriate behaviour. The woman is the mother of a South Australian sporting identity. Under law, aged care providers must report suspicions of assaults and unlawful sexual contact. In a statement, the nursing home says it has notified police. ”We are committed to ensuring each of our residents receives the best possible care,” it said. Police have interviewed staff and doctors but say no intervention is required. However, the incident is now being probed by new Aged Care Quality and Safety Commissioner Janet Anderson.