Firstly, there is no such thing as the British Legal System. There are two legal systems in the UK, England and Welsh Legal System and the Scottish Legal System. Prince Harry's and the five other claimants have been going through English and Welsh System. Their claims were being heard at the High Court in London, which is the highest court they could go (think of your Federal Court). They are entitled to apply for permission to appeal the High Court ruling at the Court of Appeal in an attempt to overturn it. But there is no guarantee. All of the claims have now been dismissed after the claimants failed to prove the allegations. A hearing will take place on 29-30 July to hear arguments on any points of dispute and any necessary court orders following the judgment.