Police Power Exercise Act Article 20
The police , when necessary, may use police handcuffs or other approved physical restraining devices on people detained or placed under control in accordance with law under any of the following circumstances:1. They resist detention or restraint measures.2. They attack the police or other people, destroy the belongings of enforcement officers or other people, or are at risk of committing violence or causing damage.3. They attempt to commit suicide or hurt themselves, or are likely to commit suicide or hurt themselves.When police seek to verify a person’s identity or otherwise make inquiries, they may not require people to give statements under the provisions that govern restraint.
中文原文 警察職權行使法第20條
警察依法留置、管束人民，有下列情形之一者，於必要時，得對其使用警銬或其他經核定之戒具：
一、抗拒留置、管束措施時。
二、攻擊警察或他人，毀損執行人員或他人物品，或有攻擊、毀損行為之虞時。
三、自殺、自傷或有自殺、自傷之虞時。
警察對人民實施查證身分或其他詢問，不得依管束之規定，令其供述。
一、抗拒留置、管束措施時。
二、攻擊警察或他人，毀損執行人員或他人物品，或有攻擊、毀損行為之虞時。
三、自殺、自傷或有自殺、自傷之虞時。
警察對人民實施查證身分或其他詢問，不得依管束之規定，令其供述。