Durham Regional Police say that one of their officers saw a man waiting for a bus in Oshawa on Monday evening.
Police say the officer thought it was strange for an out-of-town officer to be riding public transportation while in uniform.
After an interview, police determined that the man "had obtained the various uniform items online," including the shirt from a Toronto uniform, as well as a police notebook and a duty belt.
The 51-year-old man was arrested without incident. He faces charges of impersonation of a police officer and possession of property obtained by crime under $5,000.
The incident remains under investigation. Anyone with information is asked to call 1-888-579-1520, ext. 5100.