“Where an application is made to reopen findings of fact in a family case, the Court proceeds in three stages. First, it asks whether the applicant has shown there are solid grounds for believing that the previous findings require revisiting. Two, if that hurdle is overcome, it decides how the rehearing is to be conducted. Three, it re-hears the matter and determines the issues. There is no strict rule of issue estoppel in children’s cases, but a decision to allow past findings to be relitigated must be a reasoned one. The considerations identified by Hale J, as she then was, in Re B (Children Act Proceedings: Issue Estoppel)[1997] Fam 117 , provide a useful framework. In addition, the Court will need to be satisfied that the challenged finding has actual or potential legal significance, so it is likely to make a significant legal or practical difference to the arrangements that are to be made for these or other children.”