He once served in the 14th Detachment of the Second Division of the Armed Police Corps. During his service, he successively won the commendation of the squadron, the brigade, the excellent soldiers, and the excellent teachers. During the work, he is mainly responsible for collecting the dynamic development and change of the security situation, summarizing, thinking and studying, analyzing the security situation and its dynamic trend, finding out the continuous development and change of security risks and risk sources, finding out the operable solutions to the latest situation, and actively implementing and improving them.