WATCH out! There could be a bogus cop about. There are concerns that missing uniforms and accessories belonging to two Aberdeen-based auxiliary police constables, found missing from a locker on Monday night, might be in the hands of criminals. Detectives in Aberdeen said the uniforms were stolen, and beat police were yesterday alerted of the missing articles. They include a pair of shoes, a pair of boots, a helmet with a plastic safety visor, a cap with the police emblem, a summer uniform, raincoat, winter jacket and torch. Officers were told to look out for anyone wearing a police uniform with the shoulder number of A4378 or A6502. The Aberdeen divisional commander, Superintendent Alfred Ho Hon-ko, said: ''As the officer opened the locker shared [by both auxiliary officers] just before 7 pm, they found the articles missing. A report was made to their senior auxiliary officer who decided to make an official report. ''The articles had been locked there since last Thursday when the officers went home.'' Police staff officer (field) of the Support Wing, Superintendent Ken Davey, said there were no rules and regulations as to how an officer should keep uniform safe. Service revolvers, ammunition and beat radios had to be returned to the armoury after work, however, uniforms and other accessories were usually stored in the officer's own locker.