National security could be jeopardised if international legal guidelines on human rights were fully incorporated into proposed anti-subversion laws, the solicitor-general said yesterday. Some of the principles did not allow for adequate protection from the threat of violence, Robert Allcock told a seminar on the legislation, which is required under Article 23 of the Basic Law. His comments came after international human rights expert Frances D'Souza, who helped draft the Johannesburg Principles on human rights in 1995, raised serious concerns on Wednesday about the government's proposals. Speaking at a Foreign Correspondents' Club seminar, Mr Allcock cited another international human rights commentator, Sandra Coliver, as saying Johannesburg Principle 6 'is not yet an accepted norm of international law . .. [and] protects a small range of speech that legitimately could be prohibited under even the most liberal interpretations of international free speech law'. Principle 6 states that speech may only be punished if it is intended to incite imminent violence, likely to incite such violence and there is a causal link between the intention and the occurrence. 'So can one not prohibit disobedience of lawful military orders necessary for the protection of national security . . . or broadcasting propaganda for the enemy during a state of war?' he said. 'Such disobedience does not involve incitement to violence but would clearly have a disabling effect on national security.' Dr D'Souza, former executive director of Article 19, a London-based global campaign for free expression, said the requirements for imminence and a causal link were essential. Former legislator and member of the Article 23 Concern Group, Christine Loh Kung-wai, called on the government to heed concerns expressed by international banks and the business community. At another forum, several owners of small and medium-sized businesses raised questions such as whether they would be prosecuted for treason by selling textiles - used to make military uniforms - to foreign countries engaged in war with China. Acting Permanent Secretary for Security Timothy Tong Hin-ming dismissed such fears, saying convictions would only be made if violence was involved. He also dismissed reports that foreign banks were prepared to pull out of Hong Kong over the proposals. Journalism professors at the Chinese University said yesterday the government's proposals posed an 'ominous threat' to freedom. In a joint statement, they called for publication of a draft bill and a three-month extension of the consultation period, due to end on December 24.