(73)For the purpose of detecting infringements of this Regulation, it is necessary for competent authorities to be able to access sites other than the private residences of natural persons in order to seize documents. Access to such premises is necessary when there is reasonable suspicion that documents and other data related to the subject matter of an inspection or investigation exist and might be relevant to prove an infringement of this Regulation. Additionally, access to such premises is necessary where the person to whom a demand for information has already been made fails to comply with it, or where there are reasonable grounds for believing that, if a demand were to be made, it would not be complied with or that the documents or information to which the information requirement relates would be removed, tampered with or destroyed.