A court in the southern Chinese province of Guangdong has cast doubts over the jailing of Guo Li, a father who campaigned for compensation for babies and infants sickened by the 2008 melamine-tainted milk scandal...After his release last year, Guo lodged an appeal with the Guangdong Provincial High Court, which recently issued a judgment highly critical of the original decision...The provincial court found insufficient evidence to prove that Guo had used threats to extort material gains from the company...Guo's child was one of 300,000 made ill by infant formula milk laced with the industrial chemical melamine...Guo told RFA that he was held in a cell measuring little more than one meter across and deprived of food and water, and given moldy food and dirty ditch-water instead...Fellow "kidney stone baby" relative Jiang Yalin said the news of Guo's retrial was a "single ray of sunshine" for campaigners... [refers to Sanlu]