Basic information Title Dr the Honourable Name CHENG Chung-tai Gender M Year of birth 1983 Place of birth Hong Kong Personal homepage https://www.facebook.com/chengchungtai/     Period of LegCo service 1 October 2016 - 25 August 2021 Elected (Geographical Constituency - New Territories West) (He was disqualified from being a member of LegCo on 26 August 2021.) Education and professional qualifications PhD in Sociology, Peking University BA (Hons) in Social Policy and Administration, The Hong Kong Polytechnic University Occupation Full-time Legislative Council Member