The certification system and method acquires, records and then authenticates a voice communication between communicating parties by a service provider in a telecommunication system. The system acquires, maintains custody over, controls access to, and permits modification, supplementation and deletion of recorded communications session, and distributes a reproduction of an authenticated recording. The authenticated record includes the authenticated identity AU-ID of the parties which is ascertained and documented at the time of acquisition, upon any access, modification or supplementation to the recording and at the time of authentication. AU-ID is adjunct data to the recording. The supplemented recording may include a translation, a transcription and an emotional characteristic.