He has been specially trained to support a teenager with epilepsy by alerting her and her family to an impending seizure.
But two-year-old golden retriever Louie has not been seen for a fortnight after managing to slip off his lead during a walk in the Highlands.
An urgent search is now underway to reunite the support dog with 17-year-old Ellie Lynn, in Fort William.
Her mother, Louise Manson, said the family had been out to Steall Falls, in Glen Nevis, on May 26 when Louie gave them the slip and has not been since.
However, the 41-year-old believes the dog is still out there and said: 'We have heard barking and his scent has been picked up by a tracker dog, but other than that there's been very little.
