The binding legal principles established are: (1) Where a prior Supreme Court judgment has determined the substantive rights of parties in relation to the same subject matter, lower courts are bound by that determination and parties cannot relitigate those issues through subsequent proceedings; (2) Under Rule 66 of the High Court Rules, 1971, a defendant facing summary judgment must either (a) give security to the satisfaction of the Registrar, or (b) satisfy the court by affidavit that there is a bona fide defence - failure to provide security as required means the court must proceed to determine whether there is a bona fide defence; (3) Rule 238(2)(b) empowers the High Court to deal with a matter on the merits or direct it to be set down on the unopposed roll where required heads of argument are not filed within the specified period; (4) Applications to adduce further evidence on appeal must meet the criteria established in Warren-Codrington v Forsyth Trust (Pvt) Ltd 2000 (2) ZLR 377 (SC), including that the evidence could not with reasonable diligence have been obtained at trial, that it is apparently credible, and that it would probably have an important influence on the result; (5) The principle of finality in litigation requires that matters conclusively determined by courts of competent jurisdiction not be reopened through subsequent litigation between the same parties.