Liu liang, a lottery winner, threatens to commit suicide by jumping from a high-rise advertising board, if the lottery organizer fails to give him the winning prize in Xi'an, Northwest China's Shaanxi province on Mar 25, 2004. The case triggered the public's question on the credibility of the sports lottery issuance organs and their notarization system. [Photo/CFP]

Liu Liang, a lottery winner, was accused by the lottery organizer of faking the winning ticket in Xi'an, Northwest China's Shaanxi province in 2004. But the investigation showed that the lottery draw was manipulated by a lottery selling agent.

In Jan 2015, the last episode of the latest China's Union Lotto TV live show was unexpectedly called off, which was later explained by the lottery organizer as a result of data transmission failure. The case made people question the lottery's credibility.