THE Democratic Party and the Liberal Party yesterday vowed to cast votes of no-confidence in Secretary for Justice Elsie Leung Oi-sie over her reasons for not prosecuting newspaper tycoon Sally Aw Sian. The law chief's interpretation that public interest was at stake because of the potential damage Ms Aw's Sing Tao group would have suffered if she had been prosecuted had led to a proposed motion by unionist legislator Leung Yiu-chung for her resignation. Ms Aw was named as a co-conspirator in the Hong Kong Standard circulation fraud case. Margaret Ng Ngoi-yee, representing the legal profession in Legco, proposed a motion of no-confidence, which could be tabled at a March 10 meeting of the legislature. Speaking on an RTHK programme, Albert Ho Chun-yan, vice-chairman of the Democratic Party, said his party supported a vote of no-confidence. 'Not because we question Elsie Leung's honesty and integrity, but because her interpretation of public interest, her logic of thinking . . . and her judgment, have caused us to doubt very much if her grasp of legal principles and legal policies qualify her to stay on in the office of secretary for justice,' he said. The Liberal Party also supported the motion of no-confidence, saying Miss Leung's interpretation of public interest had caused doubt and confusion over the spirit of the law and the integrity of the judicial system in Hong Kong. Party chairman James Tien Pei-chun said: 'Grounded on the interest of a private corporation, the Secretary has in fact made a decision that is against the genuine interest of the public.' Democratic Alliance for the Betterment of Hong Kong Secretary-general Ma Lik said Miss Leung was right to include public interest as a consideration at a sensitive time after the handover. Hong Kong Progressive Alliance's Liu Kwok-fai said the public 'wrongly placed the emphasis on the Secretary's public interest reasons,' as insufficient evidence was her primary consideration in the case.