DEMOCRATIC Party legislator Lee Wing-tat said the four points of understanding between the two foreign secretaries provided a framework for Sino-British co-operation in the coming 20 months. But the agreement failed to dispel doubts over whether the preparatory committee, to be set up early next year, will be a shadow power centre in Hong Kong. Mr Lee said it was important to clarify that the Committee would not interfere with the day-to-day administration of the territory. He was also disappointed that there was no breakthrough for the bulk of unresolved issues in the Joint Liaison Group such as adaptation of laws and extension of international agreements. Meanwhile, PWC member Lau Siu-kai hailed the agreement as a major achievement.