The Communication Security and Surveillance Act Article 13

Surveillance should be conducted by intercepting, wiretapping, sound recording, video recording, photographing, opening, checking, copying communications or other similar necessary methods, but there should be no installation of listening devices, video recording equipment, or other surveillance devices in a private residence.When implementing communication surveillance, with exception to those having been dealt with by the law, the communications should be maintained in a smooth and open manner.Unless the enforcement authority has any justification, the surveillance recordings should be collected every 3 days.Any content of surveillance recording under the previous Paragraph that is not related to the purpose of surveillance shall not be translated.