(a) (1) A majority of the full authorized membership of an investigating committee is a quorum.
(2) Unless there is a quorum, an investigating committee may not act at any meeting or hold a hearing.
(3) Unless a greater vote expressly is required in this subtitle, an investigating committee may act by a majority vote of its members who are present at a meeting and vote.
(b) Subject to the requirements of law and any rule of the General Assembly, an investigating committee may employ necessary staff for which funds are available.