GARRETT v. GARRETT Courts—Court of Appeal—Jurisdiction—Supervisory jurisdiction—Exercise before entry of appeal—Applicant appealing to Court of Appeal from interlocutory ruling by trial High Court against her—Application to High Court for stay of proceedings until appeal determined refused—Whether applicant entitled to repeat application in Court of Appeal under LI 218, rr 27 and 28—Court of Appeal Rules, 1962 (LI 218), rr 15 (2), 21, 27 and 28.