Key dates in the downfall of Gary Cheng:
August 23, 2000: Apple Daily reports that Cheng offered consultancy services to companies controlled by tycoon Li Ka-shing without telling the legislature. He allegedly leaked a confidential government document to a business contact. Cheng admits he failed to make declarations, but denies disclosing any confidential documents.
August 24: Further evidence suggests Cheng tipped off Cheung Kong (Holdings) over sensitive items to be discussed by the legislature.
August 25: Cheng offers to resign as vice-chairman of the DAB and to wind up his two public relations consultancy firms after Apple Daily publishes further evidence.
August 29: DAB rules Cheng need not abandon his seat if elected in the Legislative Council polls.
September 2: DAB holds a 4,000-strong rally to drum up backing for Cheng and his running-mate on Hong Kong Island, Choy So-yuk.
September 10: Cheng and Ms Choy secure two seats for the DAB.