E ) LORSQUE LES TRAVAUX SONT DECLARES SECRETS OU LORSQUE LEUR EXECUTION DOIT S'ACCOMPAGNER DE MESURES PARTICULIERES DE SECURITE , CONFORMEMENT AUX DISPOSITIONS LEGISLATIVES , REGLEMENTAIRES OU ADMINISTRATIVES EN VIGUEUR DANS L'ETAT MEMBRE CONSIDERE , OU LORSQUE LA PROTECTION DES INTERETS ESSENTIELS DE LA SECURITE DE CET ETAT L'EXIGE ;
( E ) WHEN WORKS ARE DECLARED SECRET OR WHEN THEIR EXECUTION MUST BE ACCOMPANIED BY SPECIAL SECURITY MEASURES IN ACCORDANCE WITH THE PROVISIONS LAID DOWN BY LAW , REGULATION OR ADMINISTRATIVE ACTION IN FORCE IN THE MEMBER STATE CONCERNED , OR WHEN THE PROTECTION OF THE BASIC INTERESTS OF THAT STATE'S SECURITY SO REQUIRES ;