Chinese State Councilor Guo Shengkun signs a document during the secretarial meeting of SCO members' security councils in Bishkek, capital of Kyrgyzstan, on April 29, 2013. The new Chinese leadership will give full support to law enforcement and security cooperation within the framework of the Shanghai Cooperation Organization (SCO), Guo Shengkun said here Monday. (Xinhua/Guan Jianwu)