Membership in mutual.

(a) Each policyholder of a domestic mutual insurer, other than of a reinsurance contract, is a member of the insurer during the period of the insurance with all rights and obligations of such membership, and the policy shall so specify. (b) Any person, government or governmental agency, state or political subdivision thereof, public or private corporation, board, association, estate, trustee or fiduciary may be a member of a domestic mutual insurer. The right of certain governmental bodies or agencies of this State to become and be members of mutual insurers shall be subject further to the laws of this State governing such bodies or agencies.