In any inquiry or investigation by a joint legislative committee, such committee is a competent authority to confer immunity in accordance with section 50.20 of the criminal procedure law. Immunity may be conferred only upon the concurrence of a majority of the full membership of such committee and provided that at least twenty-four hours prior written notice is given to the attorney general of the state of New York and to the appropriate district attorney having an official interest therein.
New York Legal Code