(a) Prior to providing any service to a hearing impaired person, any qualified interpreter or intermediary interpreter shall subscribe to an oath that he will interpret all communications in an accurate manner to the best of his skill and knowledge.

(b) Whenever a hearing impaired person communicates with any other person through the use of an interpreter and under circumstances which make such communications privileged, the presence of the interpreter shall not vitiate such privilege and the interpreter shall not be required to disclose the contents of such communication.

(c) Whenever an interpreter is required by this article, the agency, law enforcement agency, or court shall not begin the proceeding or take any action until the interpreter is in full view of and spatially situated so as to assure effective communication with the hearing impaired person.

(d) The agency, law enforcement agency, or court may, upon its own motion or upon motion of any party, witness, or participant, order that the testimony of the hearing impaired person be electronically and visually taped or filmed. Any such tape or film may be used to verify the testimony given by the hearing impaired person.