Section 33: Invalid marriages.

(1)
No marriage in Nigeria shall be valid where either of the parties thereto at the time of the celebration of such marriage is married under customary law to any person other than the person with whom such marriage is had.
[L.N. 1 of 1955. 1970 No. 18.]
(2) A marriage shall be null and void if both parties knowingly and wilfully acquiesce in its celebration-
(a) in any place other than the office of a registrar of marriages or a licensed place of worship (except where authorised by the licence issued under section 13 of this Act); or
(b) under a false name or names; or
(c) without a registrar's certificate of notice or licence issued under section 13 of this Act duly issued; or
(d) by a person not being a recognised minister of some religious denomination or body or a registrar of marriages.
(3) But no marriage shall, after celebration, be deemed invalid by reason that any provision of this Act other than the foregoing has not been complied with.