The much-jailed head of the Singapore opposition, Chee Soon Juan, appears about to go back to jail after having been found guilty of speaking in public without a permit. Chee, the head of the Singapore Democratic Party, and Yap Keng Ho, another party official, were convicted Wednesday in the court of District Court Judge Jasvender Kaur, who postponed sentencing to give the prosecution time to state its position on six other charges. The two are to be sentenced on May 30.