The photo, taken on March 31, shows more than 100 public security officers laying wreaths at the Monument to the People's Heroes at the Hunan Revolutionary Cemetery. (Photo/Tian Chao, Luo Gang, Hunan Daily)

The Changsha Municipal Public Security Bureau held a memorial ceremony that day, to pay tribute to the police martyrs who sacrificed their lives for the Party, the country and the people. The activity also aimed to promote the education and construction of the police force, and encourage them to carry forward the spirit of police martyrs.

Source: en.changsha.gov.cn