97Under Article 44(1)(c) and Article 48(2) of the Rules of Procedure, the application initiating the proceedings must indicate the subject-matter of the proceedings and contain a summary of the pleas in law relied on, and new pleas in law may not be introduced in the course of the proceedings unless they are based on matters of law or of fact which come to light in the course of the procedure. However, a plea which constitutes an amplification of a plea made previously, whether directly or by implication, in the original application, and which is closely connected therewith, will be declared admissible. The same applies to a complaint made in support of a plea in law (see Case T-231/99Joynson v Commission [2002] ECR II-2085, paragraph 156 and the case-law cited).