What form should the authorisation for a representative designated under Art. 27 GDPR take?

ANSWER

An individual or legal entity becomes a representative by virtue of being designated in that role "in writing" by the controller or processor. Part of legal doctrine accepts not only the ordinary written form but also the electronic form with a qualified electronic signature, and even the documentary form. Another part of the doctrine, however, considers only the written form permissible (i.e., affixing a handwritten signature to the document designating the representative).