The Commission should be able to request information necessary for the purpose of ensuring the effective implementation of and compliance with the obligations laid down in this Regulation, throughout the Union. In particular, the Commission should have access to any relevant documents, data and information necessary to open and conduct investigations and to monitor the compliance with the relevant obligations laid down in this Regulation, irrespective of who possesses the documents, data or information in question, and regardless of their form or format, their storage medium, or the precise place where they are stored. The Commission should be able to directly require by means of a duly substantiated request for information that the provider of the very large online platform or of the very large online search engine concerned as well as any other natural or legal persons acting for purposes related to their trade, business, craft or profession that may be reasonably aware of information relating to the suspected infringement or the infringement, as applicable, provide any relevant evidence, data and information. In addition, the Commission should be able to request any relevant information from any public authority, body or agency within the Member State for the purpose of this Regulation. The Commission should be able to require access to, and explanations by means of exercise of investigatory powers, such as requests for information or interviews, relating to documents, data, information, data-bases and algorithms of relevant persons, and to interview, with their consent, any natural or legal persons who may be in possession of useful information and to record the statements made by any technical means. The Commission should also be empowered to undertake such inspections as are necessary to enforce the relevant provisions of this Regulation. Those investigatory powers aim to complement the Commission’s possibility to ask Digital Services Coordinators and other Member States’ authorities for assistance, for instance by providing information or in the exercise of those powers.