((a)) ** .—** No judge whose conduct is the subject of an investigation under this chapter shall serve upon a special committee appointed under section 353, upon a judicial council, upon the Judicial Conference, or upon the standing committee established under section 331, until all proceedings under this chapter relating to such investigation have been finally terminated.

((b)) ** .—** No person shall be granted the right to intervene or to appear as amicus curiae in any proceeding before a judicial council or the Judicial Conference under this chapter.