Li Dinghua (Dedication Model for 1st Term of Chenzhou City): Male, born in October, 1954, one of the Principal Staff Members of First Brigade of Traffic Police Detachment of Chenzhou Public Security Bureau, first-grade police supervisor. As a traffic police, Li Dinghua kept working in the front line for over 30 years. Though his health condition is not so good as the young ones, he fulfilled his duties seriously.