1. Third plea in law, alleging lack of competence of the assessors.

2. 62 The Court has jurisdiction, in the context of annulment proceedings, to adjudicate in actions for lack of competence, infringement of essential procedural requirements, infringement of the treaties or of any rule of law relating to their application, or misuse of powers.

3. Pleas in law: Infringement of the audi alteram partum rule, lack of competence, failure to understand the fundamental rules of natural justice and infringement of an essential procedural requirement, as the Board of Appeal decided that the evidence contained in the applicant’s letters was not acceptable as it was not in affidavit format.