Police appeal for help to solve robberies in Joondalup, Ellenbrook Detectives from the Regional Investigations Unit are seeking the public's assistance in their investigation into an incident at a Joondalup liquor store last month. WA police are looking for public assistance to solve a robbery in Joondalup and a burglary in Ellenbrook. Police are looking for this man who stole a carton of beer from a Joondaluip liquor store on Anzac Day, 2013. This man is wanted over the burglary of a Dymocks book store in Ellenbrook on Friday, May 24. POLICE need help in their investigation into a robbery and burglary in Perth's northern and eastern suburbs. About 5.15pm on Anzac Day a man entered Liquorland on Joondalup Drive, and took a carton of beer from the cool room and walked out of the store. As he was challenged by a 20-year-old male staff member, the offender tried to assault the man before removing a knife from his pocket and brandishing it at the victim, narrowly missing him. The man then left the scene in a vehicle believed to be an early-90s white Ford Falcon. The man is described as fair-skinned, about 25 years, between 160cm and 170cm tall with blond hair and a beard and moustache. Detectives would like to speak to the man depicted in security vision from the store who they believe can assist with their inquiries. Officers are also investigating a burglary at Dymocks book store in Ellenbrook and want to identify a man who they believe can assist with their inquiries. At 7am last Friday, May 24, a man entered the Ellenbrook Shopping Centre and walked through an access corridor before forcing the rear door open into the book store. The offender took cash from the store before walking out. Anyone who recognises the person in the attached photos or who has any information is asked to call Crime Stoppers on 1800 333 000.