Regional Investigations Unit detectives are appealing for information from the public to locate 43-year-old Corey-Benson MCCOLL.
It is believed that Mr MCCOLL can assist in relation to a serious assault thatoccurred at a fast-food restaurant in May last year.
He is described as 180cm tall, medium build with brown hair and grey eyes.
Anyone who sights Mr MCCOLL is asked to contact police immediately on 131 444.
Anyone who has information on his whereabouts is asked to contact police on 1800 333 000 or make a report online via crimestopperswa.com.au