The former secretary for home affairs Michael Suen Ming-yeung's move to the Chief Executive-designate's office posed a threat to the Government's authority, legislators said yesterday. They expressed concern following Mr Suen's discussion on Sunday about the re-introduction of appointed seats to municipal councils and district boards after the handover. Democrat Cheung Man-kwong asked what Mr Suen's role would be in the proposal. 'I wonder whether Mr Suen will assist in preparing the list of appointees?' he said. 'And, if so, does that deviate from the existing policy of the Hong Kong Government?' Fellow Democrat Dr Yeung Sum said the Government's credibility would be undermined if Mr Suen, as a civil servant, did anything contrary to existing policy. Deputy Secretary for Constitutional Affairs Joseph Lai Yee-tak said once colleagues were seconded their duties would be in the hands of Tung Chee-hwa. He said the Government was committed to providing all 'reasonable' assistance to the Chief Executive-designate under conditions which required the Government's authority and credibility not be compromised. The Government opposes China's decisions to disband the two municipal councils and 18 district boards, and the plan to reintroduce appointed seats. The Preparatory Committee has ruled the bodies be expanded by no more than 25 per cent for new appointees.