A MAN robbed a jewellery store in Cockburn at 10.30am on Saturday, May 27, after asking to see a ring and necklace that were on display. While staff showed the jewellery to the man he pointed to another display. When they turned to look he grabbed the jewellery and ran. Police believe the man pictured can help them with their investigations. He is described as lightskinned, between 30 and 40 years old and wearing a large fluro yellow jacket, long dark pants and a dark beanie. He has tattoos on the back of both hands.