(a) 調查和處理滲水投訴及其他有關環境衞生／蟲鼠滋擾的投訴、提交調查報告和建議跟進行動；
(b) 就環境衞生／蟲鼠滋擾等問題進行視察及統計調查；
(c) 履行執法職務；
(d) 就法律訴訟給予證人口供，並就不認罪個案上庭作證；
(e) 協助執行有關消除環境衞生／蟲鼠滋擾的特別行動／活動，及協助籌辦衞生教育活動；
(f) 協助衞生督察職系人員及其他指定職員／人士執行其他有關公共及環境衞生工作；及
(g) 有關防治蟲鼠的工作。
[註：(a) 每周須工作45小時（不包括用膳時間）；須輪班及／或不定時工作；及被派到偏遠地區工作；及(b) 在當值時或須穿著由部門提供的工作服。]

(a) to investigate and handle water seepage and other complaints in relation to environmental hygiene / pest nuisances, submit investigation reports and recommend follow-up action;
(b) to conduct inspections and surveys concerning environmental hygiene / pest nuisances;
(c) to perform law enforcement duties;
(d) to give witness statement in legal proceedings and to testify in court against plead-not-guilty cases;
(e) to assist in special operations / campaigns to abate environmental hygiene / pest nuisances and health education campaigns;
(f) to assist Health Inspectorate grade officers as well as other designated staff / personnel to carry out other public health and environmental hygiene duties; and
(g) to perform duties related to pest prevention and control.
[Notes: (a) Required to work 45 hours per week (excluding meal breaks); to work shifts and / or irregular hours and in remote locations; and (b) may be required to wear working outfits provided by the Department whilst on duty.]