A FORMER beauty queen will stand trial next year for trafficking in 15.36 grams of cocaine and two tablets containing part one poison. Betty Yau Pik-yu, 25, Miss Popularity in the 1988 Miss Hongkong contest, has denied the charge. Lo Man-ho, 27, who is jointly charged with the same offence, has also pleaded not guilty. Lo also denied possessing 24.73 grams of cannabis. Their trial is set for May 5.