2.50.—(1) If any person other than the Crown Solicitor wishes to show cause under Article 11 of the Order of 1978 why a decree nisi should not be made absolute, he shall file an affidavit stating the facts on which he relies and a copy shall be served on the party in whose favour the decree was pronounced.
(2) A party on whom a copy of an affidavit has been served under paragraph (1) may, within 14 days after service, file an affidavit in answer and, if he does so, a copy thereof shall be served on the person showing cause.
(3) The person showing cause may file an affidavit in reply within 14 days after service of the affidavit in answer and, if he does so, a copy shall be served on each party who was served with a copy of his original affidavit.
(4) No affidavit after an affidavit in reply shall be filed without leave.
(5) Any person who files an affidavit under paragraph (1), (2) or (3) shall at the same time file a copy for service on each person required to be served therewith and the proper officer or chief clerk, as the case may be, shall thereupon serve the copy on that person.
(6) A person showing cause shall apply to the judge for directions within 14 days after expiry of the time allowed for filing an affidavit in reply or, where no affidavit in answer has been filed, within 14 days after expiry of the time allowed for filing such an affidavit.
(7) If the person showing cause does not apply under paragraph (6) within the time limited, the person in whose favour the decree was pronounced may do so.
(8) The judge may either give directions for the trial of the intervention or, if he is satisfied that there is no question to be tried, dismiss the intervention.
(9) If the judge gives such directions in a cause pending in a divorce county court, he shall thereupon order the cause to be transferred to the High Court.
(10) When directions have been given under paragraph (8) and, if necessary, the cause has been transferred to the High Court, the intervention shall proceed as nearly as may be in the manner prescribed by paragraphs (6) to (9) of rule 2.49, substituting for references to the Crown Solicitor references to the person showing cause, but no plea or answer need be filed unless the judge so directs.