Top: Yang Dacai, former head of the Shaanxi provincial work safety administration, is seen on trial on Friday at Xi'an's Intermediate People's Court. Yang pleaded guilty to accepting bribes and owning an unexplained amount of property. Above: The then Shaanxi work safety chief Yang Dacai smiles as he inspects a highway crash that killed 36 people on Aug 26, 2012. The photo sparked public outrage and led to an investigation of his lifestyle. Li Yibo / Xinhua