①An immigration control officer may, if it is necessary for conducting an investigation into violations, upon receiving the issuance of a permit, seize postal items, correspondence delivery items or documents concerning telegrams that have been sent by or to the suspect and that are kept or possessed by a person handling communications services pursuant to the provisions of laws and regulations.

②An immigration control officer may, upon receiving the issuance of a permit, seize postal items, correspondence delivery items or documents concerning telegrams that do not fall under the provisions of the preceding paragraph and that are kept or possessed by a person handling communications services pursuant to the provisions of laws and regulations, limited to those for which there are circumstances sufficient to find that they are related to the case of violation.

③If an immigration control officer has carried out a disposition pursuant to the provisions of the preceding two paragraphs, the officer must notify the sender or recipient to that effect; provided, however, that this does not apply if the notification is likely to obstruct the investigation into violations.