Chief Secretary for Administration Anson Chan Fang On-sang yesterday stressed the need to establish a way of ensuring all chickens imported from the mainland are virus-free. Speaking on the first day of an official trip to Beijing, Mrs Chan said she had briefed Public Security Minister Tao Siqu on Hong Kong's attempts to stop the spread of the deadly H5N1 bird flu virus. Mrs Chan refused to say whether Mr Tao had suggested action the SAR Government should take. 'It is not their responsibility, but as they are concerned about the issue I gave them a briefing on how we destroyed the chickens,' she said. 'I also expressed our desire to develop a more comprehensive system with the mainland to ensure imported chickens are clean and without the H5N1 virus.' Her comments came as it was revealed that members of China's Health Ministry will be part of a World Health Organisation/US Centres for Disease Control team going to Guangdong on Sunday to try to establish whether there is bird flu on the mainland. Mrs Chan said she and Mr Tao also discussed co-operation in fighting cross-border crime. She said they both recognised the importance of holding regular meetings between Hong Kong police and the Public Security Bureau. They had also discussed the settlement of mainland-born children with right of abode in Hong Kong. 'We are satisfied with the current arrangements,' Mrs Chan said. She is today due to meet Vice-Premier Qian Qichen, National People's Congress Secretary-General Cao Zhi and the Director of the Hong Kong and Macau Affairs Office, Liao Hui. Mrs Chan said the trip was a good opportunity for her to bring Mr Qian up to date on happenings in Hong Kong.