Enforcement officers shall respect the confidentiality of the complaints referred to them and shall refrain from disclosing to any person the identity of a complainant and from publicising the existence of complaints alleging an infringement or failure to comply with the provisions of Articles L. 8112-1 and L. 8112-2, except where the complainant has informed his employer in writing that he is seeking the intervention of enforcement officers to put a stop to the infringement indicated by his complaint.