Haw. Rev. Stat. § 21-6: Membership, quorum, voting.

(a) An investigating committee shall consist of not less than five members.

(b) A quorum shall consist of a majority of the total authorized membership of the committee.

(c) No action shall be taken by a committee at any meeting unless a quorum is present. The committee may act by a majority vote of the members present and voting at a meeting at which there is a quorum, unless the provisions of this chapter or any other statute require a greater number or proportion.