Where a councillor—
(a)becomes disqualified for being a councillor[F1otherwise than under Article 19 or 20 of the Local Government (Northern Ireland) Order 2005 or by reason of] a conviction[F2 or of a determination by the High Court that he has acted in breach of the terms of a declaration against terrorism as defined in section 7 of the Elected Authorities (Northern Ireland) Act 1989], or of his being guilty of any conduct which the High Court has by order declared was reprehensible within the meaning of section 31, or of a breach of any statutroy provision relating to corrupt or illegal practices; or
(b)ceases to be a councillor by reason of failure to attend meetings of the council;
the council shall forthwith declare his office as councillor to be vacant and signify the vacancy by notice signed by the clerk of the council and published in such manner as the council directs.
F1Words in s. 10(a) substituted (1.4.2006) by Local Government (Northern Ireland) Order 2005 (S.I. 2005/1968 (N.I. 18)), arts. 1(2), 28(3); S.R. 2006/151, art. 2, Sch. (with art. 4)