There was no hurry to introduce safeguards on the Chief Executive seeking interpretations of the mini-constitution from Beijing, a Basic Law Committee member said yesterday. But Maria Tam Wai-chu agreed a mechanism was needed. 'Sooner or later we need a convention, but the time is not ripe. I fully understand why the Government say they need to consider it. It's only the first case. The chance of making a mistake will be higher,' she said. Ms Tam, a former Basic Law drafter, said the content of the Basic Law had not been implemented for long enough to establish a constitutional convention. With more experience and information, she said: 'We will then be able to have a gentlemen's agreement about what your jurisdiction is and what is mine. 'It's not just restraint on the executive, but the Judiciary and the legislature. Under the Basic Law, everybody knows where his jurisdiction lies. If everyone always wants to step into the jurisdiction of others, we will never be able to solve legal disputes arising from the constitution.' Tung Chee-hwa has written to the State Council's Hong Kong and Macau Affairs Office asking it to request a reinterpretation by the National People's Congress Standing Committee. His office did not say when the letter would be published. In a statement yesterday, the pressure group Justice condemned the decision. The Hong Kong section of the International Commission of Jurists said: 'By itself, such a request amounts to a political review of the judgment of the Court of Final Appeal. By implication, it destroys the authority of the Court of Final Appeal and the rule of law.'