The Civil Procedure Rules 1998

[F1Security for costs of an appealE+W

25.15(1) The court may order security for costs of an appeal against—

(a)an appellant;

(b)a respondent who also appeals,

on the same grounds as it may order security for costs against a claimant under this Part.

(2) The court may also make an order under paragraph (1) where the appellant, or the respondent who also appeals, is a limited company and there is reason to believe it will be unable to pay the costs of the other parties to the appeal should its appeal be unsuccessful.]