科學主任(醫務)(公共衞生)的主要職責包括─ (a) 建立、操作、維持及評估有關公共衞生題材(包括監察)的資訊系統； (b) 協調有關健康數據的搜集、編製及分析工作； (c) 籌劃、設計和推行公共衞生研究項目，包括進行有關準備工作，以及審視本地和海外有關公共衞生政策(例如酒類管制)的法律架構； (d) 就有關環境問題的健康風險評估提供專業意見； (e) 就流行病學／公共衞生／環境衞生研究／酒類管制及有關事宜，提供統計及／或其他研究支援服務； (f) 仔細評核研究建議／健康宣傳建議；就檢視最新的科學實證、各項建議是否可行和適用(例如是否符合國際慣例)，以及與擬定、推行、監察和評估公共衞生政策(例如酒類管制和愛滋病病毒感染／愛滋病)有關的建議，提供專業意見； (g) 為公共衞生調查及監控，提供支援； (h) 在搜尋、匯集及研究科學證據時，提供專業意見； (i) 就環境問題、衞生資訊與研究、酒類管制或愛滋病病毒感染／愛滋病及相關事宜，協助處理有關的查詢和聯絡工作；以及 (j) 參與督導及訓練工作。 (備註：可能須不定時工作。)

A Scientific Officer (Medical) (Public Health) is mainly deployed on – (a) setting up, operating, maintaining and evaluating information system on public health subjects including surveillance; (b) coordinating the collection, compilation and analysis of health data; (c) planning, designing and carrying out research projects related to public health subjects, including the preparation of research projects and evaluating the local and overseas legislative regimes relating to public health policies, e.g. alcohol control; (d) providing professional input in health risk assessment from environmental hazards; (e) providing statistical and/ or other research support to epidemiology / public health / environmental health studies / alcohol-control and related matters; (f) appraising research / health promotion proposals critically, providing professional inputs in reviewing the latest scientific evidence, the feasibility and applicability of various proposals, e.g. international practices, and the recommendations on planning, implementation, progress monitoring, and evaluation of public health policies, e.g. alcohol control and HIV / AIDS; (g) providing support to public health investigation and control; (h) providing professional input in searching, aggregating and distilling scientific evidence; (i) assisting in handling enquiries and liaison work related to environmental hazards, health information and research, alcohol control or HIV / AIDS and related matters; and (j) involving in supervisory and training activities. [Note: May be required to work irregular hours.]