Translate the following English sentence to French:
"I must not overlook the fact that 1999 marked the beginning of the 1999-2004 parliamentary term of the European Parliament, that it was the year in which the new Commission took up its duties and, as a consequence, the year in which a Commissioner solely responsible for the areas of justice and home affairs assumed his responsibilities."
Je n'oublie pas que 1999 a été aussi l'année de l'entrée en fonction de la législature 1999-2004 du Parlement européen, de la nouvelle Commission et de l'entrée en fonction d'un commissaire exclusivement responsable pour la justice et les affaires intérieures.