Police Duty Act Article 16

The arrangement of police duty hours is normally four hours of active duties followed by eight hours of passive duties; other arrangements may also be adopted if necessary.During duty hours, officers shall be scheduled to perform different duties, each duty is usually 2-4 hours depending on the available police force and workload. In special circumstances, the length of certain duties shall be shortened or extended. Nevertheless, household visits shall be basically scheduled for 2-4 hours a day to balance the officer’s workload.Duty officers shall get eight consecutive hours’ sleep a day, and the length of midnight shift shall not exceed the four-hour limit unless there are special missions to fulfill.
中文原文 警察勤務條例第16條
服勤時間之分配,以勤四、息八為原則,或採其他適合實際需要之時間分配。
聯合服勤時間各種勤務方式互換,應視警力及工作量之差異,每次二至四小時,遇有特殊情形,得縮短或延伸之。
但勤區查察時間,得斟酌勞逸情形每日二至四小時。
服勤人員每日應有連續八小時之睡眠時間,深夜勤務以不超過四小時為度。
但有特殊任務,得變更之。

English translation for reference only; the Chinese text prevails. Not legal advice.