Beijing would be unlikely to veto a mildly pan-democratic chief executive candidate elected by Hongkongers in 2017, Legislative Council president Jasper Tsang Yok-sing said. But if the central government did so, riots in the city's streets would be inevitable, and such a consequence was well understood among central officials, the veteran Beijing-loyalist politician told ATV's Newsline, in an interview broadcast yesterday. However, Tsang warned that Hongkongers should think twice before electing a radically anti-Beijing person whose refusal by Beijing could result in a "serious crisis" for the city's constitutional development. "If we have someone really very popular, standing on an election platform that no one can believe to be really hostile to the central government ... and all Hong Kong people believe that - despite this candidate's sort-of pan-democratic background - he or she is going to do a good job [and] cooperate with the central government ... then if the central government says no, of course there will be riots," said Tsang. "I don't see why, in that case, the central government should veto them," he added. The issue about Beijing shunning a pro-democracy winner in the chief executive election stems from the Basic Law provision that the candidate has to be appointed by the central government. "On the other hand, if some guy stands in the election, with a very anti-Beijing [platform], and says all the things the central government doesn't want to hear, and he or she is still elected ... it means Hong Kong people are ... thumbing their noses in a sort of confrontational situation [with Beijing]," Tsang said. But he would not say if Beijing would then not appoint the radical winner. "I would say that would be a serious crisis in our 'One Country, Two Systems' [policy]," he said.