Should leave to appeal be granted, the merits of the case, the allegations presented in the appeal petition, is decided on by five members of the Court. Also the decision on the merits is made upon presentation by a referendary, meaning that the referendary prepares the case and is partly responsible for the outcome of the case. Apart from documentary evidence and applicable legislation, the sources of law on which the decision of the Supreme Court may be based include case law, the legislative history of Acts of Parliament, textbooks and international conventions.