On application to it in that behalf by either of the civil partners or by another person who, in the opinion of the court, has sufficient standing in the matter, the court may grant a decree of nullity if satisfied that at the time the civil partners registered in a civil partnership -
(a) either or both of the parties lacked the capacity to become the civil partner of the other for any reason, including -
(i) either or both of the parties was under the age of eighteen years,
(ii) either or both of the parties was already a party to a valid marriage, and
(iii) either or both of the parties was already registered in a relationship with another person which was entitled to be recognised as a civil partnership in the State in accordance with section 5 and which had not been dissolved,
(b) the formalities for the registration of the civil partnership were not observed,
(c) either or both of the parties did not give free and informed consent to the civil partnership registration for any rea
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