THE Gambling Ordinance conflicts with the Bill of Rights because it does not allow defendants to prove they had no knowledge that an establishment in which they were found was unlawful, a lawyer argued yesterday. Erik Shum, representing three Tuen Mun District Board members, told Magistrate Patrick Li in Tuen Mun Court that the Gambling Ordinance infringed Bill of Rights Article 5 (1), which guaranteed the right to liberty and security of person. He said the ordinance, under which anyone found in a gambling establishment was presumed to be there for unlawful gambling, could scupper a defence of not knowing a place was unlawful. Four Tuen Mun District Board members denied charges of gambling in a gambling establishment. They are So Shui-shing, 53, also a Regional Councillor, Shung King-fai, 36, Chu Cho-yan, 23, and Ng Wai-cho, 42. They appeared with 19 other defendants. Shung, Chu and Ng are members of the United Democrats of Hong Kong. The 19 other defendants denied charges including managing a gambling establishment, assisting in the management of a gambling establishment and supplying liquor without a licence. Mr Shum will continue his submission today.