Immigration Act Article 37

The National Immigration Agency can request concerned departments or organizations for assistance or necessary information that would help investigate nationals without household registration in the Taiwan Area and are involved in any of the cases mentioned in Paragraphs 1 and 2 of Article 15, as well as aliens who are involved in any of the cases indicated in Paragraph 1 of the preceding Article. The requested departments or organizations must not reject the request except for justifiable reasons.When nationals without household registration in the Taiwan Area or aliens have served out their sentences or will be released for a reason, the prison facility, vocational training facility, drug rehabilitation center, reform school, or correctional school should notify the National Immigration Agency.