Top police officers from Hong Kong and Shenzhen are meeting in the territory to discuss security arrangements for handover day. A 15-member delegation led by director of Shenzhen Municipal Public Security Bureau and the city's deputy mayor, He Jinghuan, will also meet officers from Organised Crime and Triad Bureau to exchange intelligence today. Police Commissioner Eddie Hui Ki-on said: 'Mr He is leading a delegation comprising heads of their sub-bureaux to visit Hong Kong. We would make use of the good chance to discuss how we should co-ordinate on June 30 and July 1. 'Anti-illegal immigration measures will also be one of the topics we discuss.' The delegation yesterday joined talks on anti-II operations in Hong Kong with the Marine Police. On protection for President Jiang Zemin and premier Li Peng during the ceremony, Mr Hui said the mainland authorities had not given them any guidelines on how to handle matters or prevent the officials from meeting demonstrators. Asked if they would take note of recent bombing cases in Beijing while working out the protection plan, Mr Hui said: 'The police are very concerned about all the terrorist activities in the world as there will be many overseas visitors coming to Hong Kong. We have also been liaising closely with our overseas counterparts.' The mainland officers, who arrived in Hong Kong on Wednesday, are due to leave the territory tonight. They yesterday saw the commissioning ceremony of seven new Boston Whaler inshore patrol group launches at Joss House Bay.