Police Power Exercise Act Article 9
When the police have enough facts to believe that the actions of people who participate in assemblies, parades or other public events may endanger public safety or order, they may collect at the scene information about the participants in the event by videotape, recording or other technology tools. When it is impossible not to involve a third party during the said data collection process, the third party may be recorded as well.Data collected in accordance with the provisions stipulated in the preceding paragraph shall be destroyed immediately after the relevant assemblies, demonstrations, or other public activities are over unless it must be kept for the investigation of crimes or other illegal acts.Data preserved as per the provisions in paragraph 2 shall be destroyed no later than one year after they are needed unless they are required for cases that are being prosecuted but the judicial proceedings has yet to reach finality or cases involving violation of the Organized Crime Prevention Act.
中文原文 警察職權行使法第9條
警察依事實足認集會遊行或其他公共活動參與者之行為，對公共安全或秩序有危害之虞時，於該活動期間，得予攝影、錄音或以其他科技工具，蒐集參與者現場活動資料。
資料蒐集無法避免涉及第三人者，得及於第三人。
依前項規定蒐集之資料，於集會遊行或其他公共活動結束後，應即銷毀之。
但為調查犯罪或其他違法行為，而有保存之必要者，不在此限。
依第二項但書規定保存之資料，除經起訴且審判程序尚未終結或違反組織犯罪防制條例案件者外，至遲應於資料製作完成時起一年內銷毀之。
資料蒐集無法避免涉及第三人者，得及於第三人。
依前項規定蒐集之資料，於集會遊行或其他公共活動結束後，應即銷毀之。
但為調查犯罪或其他違法行為，而有保存之必要者，不在此限。
依第二項但書規定保存之資料，除經起訴且審判程序尚未終結或違反組織犯罪防制條例案件者外，至遲應於資料製作完成時起一年內銷毀之。