A police officer explains different objects on his uniform to visitors at the Royal Canadian Mounted Police's main detachment during the annual open doors event in Richmond, Canada, June 3, 2018. The annual open doors event gives citizens free access to dozens of sites in the city to learn more about the heritage and operation in community. (Xinhua/Liang Sen)
Annual open doors event held in Richmond, Canada
Source: Xinhua| 2018-06-04 08:15:36|Editor: zh
