From China Digital Space
国宝 (guóbǎo): national treasure
Since they are not subject to the same oversight, DSD officials are more feared and reviled than the regular police; they have been known to beat and illegally detain dissidents. Activist Hu Jia and renowned artist Ai Weiwei have both been detained and beaten by the DSD, while Liu Xia, wife of Nobel-prize winning democracy activist Liu Xiaobo, remains under their watchful eye as she endures illegal house arrest.
The panda, China’s national treasure, is often used as a symbol of the DSD.