A man accused of impersonating police officers to commit a series of robberies in Seattle parks has been arrested.

Police say 46-year-old Ryan James Purdy was arrested Wednesday in Auburn after he bragged to another bus passenger that he was wanted for impersonating a cop. The other passenger got off the bus and called police.

Seattle police have been looking for Purdy since December. They say he used a fake badge to check people's identification and would steal credit cards.