A DELIVERY worker who posed as a police officer and made 'inquiries' at a fashion store was fined $1,000 at North Kowloon Court yesterday. Cheng Fu-keung, 38, was simply being 'playful' when he pretended to be a policeman, said his lawyer Ernest Koo. Cheng admitted impersonating a police officer. On November 20 last year he went to a Giordano shop in Argyle Street, Mongkok, magistrate David Duggan was told. Cheng asked a male member of staff whether anyone had made a report to police but the salesman said no. Cheng then made several calls on his mobile phone and said he would trace the false reporting. He said the report had been made from a 7-Eleven shop in nearby Shan Tung Street,and then left. Cheng returned at about 9.50 pm and asked the same salesman to produce his identity card. He also asked for the company name card. Cheng suggested he would go back to Kowloon headquarters to cancel the report for the salesman in order to save his time. The salesman became suspicious and reported Cheng to the police. 'He had no menace at all,' said Mr Koo, defending.