In order to have those parts of the investigation under the preceding Article that require specialized knowledge and experience properly conducted, a large-scale specified telecommunications service provider must appoint a violating information investigation specialist (referred to as an "investigation specialist" in this Article and Article 25, paragraph (2), item (ii)) from among persons who have sufficient knowledge and experience in dealing with violations of rights arising from dissemination of information through specified telecommunications.
大規模特定電気通信役務提供者は、前条の調査のうち専門的な知識経験を必要とするものを適正に行わせるため、特定電気通信による情報の流通によって発生する権利侵害への対処に関して十分な知識経験を有する者のうちから、侵害情報調査専門員（以下この条及び次条第二項第二号において「専門員」という。）を選任しなければならない。
The number of investigation specialists of a large-scale specified telecommunications service provider must be the number specified by Order of the Ministry of Internal Affairs and Communications according to the average monthly number of senders or average monthly total number of senders, and the type, of the large-scale specified telecommunications service provided by that large-scale specified telecommunications service provider, or more (in the case where that large-scale specified telecommunications service provider provides multiple large-scale specified telecommunications services, the sum of the numbers specified by Order of the Ministry of Internal Affairs and Communications according to the average monthly number of senders or average monthly total number of senders, and the type, of each large-scale specified telecommunications service).
大規模特定電気通信役務提供者の専門員の数は、当該大規模特定電気通信役務提供者の提供する大規模特定電気通信役務の平均月間発信者数又は平均月間延べ発信者数及び種別に応じて総務省令で定める数（当該大規模特定電気通信役務提供者が複数の大規模特定電気通信役務を提供している場合にあっては、それぞれの大規模特定電気通信役務の平均月間発信者数又は平均月間延べ発信者数及び種別に応じて総務省令で定める数を合算した数）以上でなければならない。
When a large-scale specified telecommunications service provider has appointed an investigation specialist, it must, as specified by Order of the Ministry of Internal Affairs and Communications, notify the Minister for Internal Affairs and Communications to that effect and of the matters specified by Order of the Ministry of Internal Affairs and Communications, without delay. The same applies when it has changed these.
大規模特定電気通信役務提供者は、専門員を選任したときは、総務省令で定めるところにより、遅滞なく、その旨及び総務省令で定める事項を総務大臣に届け出なければならない。これらを変更したときも、同様とする。