An immigration control official or duly authorized public official shall carry a certificate indicating his or her authority, and produce it to relevant persons when performing the following duties: <Amended on Mar. 29, 2016>
1. Inspecting a residence or articles, or requesting submission of documents or other articles, under Article 50;
2. Conducting a search and an examination under Article 69 (including cases to which the aforementioned Article shall apply mutatis mutandis pursuant to Article 70(1) and (2));
3. Making an inquiry or requesting submission of other necessary materials under Articles 80 and 81;
4. Performing duties equivalent to those referred to in subparagraphs 1 through 3.[This Article Wholly Amended on May 14, 2010]