合約農林助理員主要職責包括(a)於海岸保護區、海岸公園和地質公園巡邏，並向遊客提供協助和資訊；(b)履行執法職務，包括進行調查、發出警告和提出檢控；(c)進行遊客活動調查、水底生物調查和生態研究；(d)協助文書工作、數據處理、備存記錄和擬備報告；(e)管理和維修公園設施、巡邏艇、工具和設備；(f)執行颱風當值職務；以及(g)履行獲指派的其他相關職務。
[註：可能須在新界地區工作，並須不定時工作(包括晚間及周末)，在基地以外的地方通宵工作，以及大部分工作時間是在部門或商業漁船上執行職務。]

The Contract Field Assistant is mainly deployed on (a) patrolling marine reserve, marine parks and Geopark, and providing assistance and advice to the visitors; (b) discharging law enforcement duties, including investigations, warnings and prosecutions; (c) conducting visitor activity survey, underwater biological survey and ecological studies; (d) assisting in clerical work, data processing, maintaining record and preparing reports; (e) managing and maintaining parks facilities, patrol vessels, tools and equipment; (f) performing typhoon duties; and (g) carrying out any other relevant duties as may be required.
[May be required to work in the New Territories and have to work irregular hours including evenings and weekends, to stay overnight away from the base, and to spend most of the working hours at sea on departmental or commercial fishing vessels.]