The Communication Security and Surveillance Act Article 2
Communication surveillance may only be conducted for the necessity of ensuring national security, and maintaining social order.The surveillance mentioned in the preceding Paragraph shall not exceed the necessary limits to achieve the objective, and the appropriate methods for the action should have only the minimum intrusion.
中文原文 通訊保障及監察法第2條
通訊監察，除為確保國家安全、維持社會秩序所必要者外，不得為之。
前項監察，不得逾越所欲達成目的之必要限度，且應以侵害最少之適當方法為之。
前項監察，不得逾越所欲達成目的之必要限度，且應以侵害最少之適當方法為之。