Police Personnel Management Act Article 27

Additional pay for police personnel is divided into five types, namely duty additional pay, technical additional pay, professional additional pay, supervisory differential pay and regional additional pay. The amounts for each type of additional pay shall be determined by the Executive Yuan.
中文原文 警察人員人事條例第27條
警察人員加給分勤務加給、技術加給、專業加給、職務加給、地域加給;其各種加給之給與,由行政院定之。

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