Cops re-appeal for missing Edinburgh woman amid possible sightingCops think they have come upon a fresh sighting of Alison Gibbens who vanished from the city on Monday morning. View Image Alison Gibbens (Image: Police Scotland)Cops are re-appealing for information in the search for a missing woman from Edinburgh. Alison Gibbens was last seen on North Gyle Avenue in the capital around 10.30am on Monday, January 26. ‌An enquiry was launched into her disappearance which has so far turned up a possible sighting of the 60-year-old at the junction of Whitehouse Road and Gamekeeper's Road at around 2.45pm on Monday, January 26. ‌The woman, believed to be Alison, was seen wearing a black, three-quarter length jacket and a scarf.