In the context of the administrative cooperation organised by Regulation (EU) 2017/2394 of the European Parliament and of the Council of 12 December 2017 on cooperation between national authorities responsible for the enforcement of consumer protection laws and repealing Regulation (EC) No 2006/2004, where a request for mutual assistance is made by a Member State of the European Union or by the European Commission, the investigation, detection and cessation of infringements or breaches shall be carried out under the conditions laid down in this Book.