Jurisprudence in countries of germano-romanic law is considerably less important than precedent established in a previous legal case in Common Law. The judge has a certain freedom in interpreting the statutes but his decision can't be used to solve a Law issue and in principle applies only to a singular case.
Yes, I am aware of this difference, but you stated in your post at the top of this page: "Previous judgements have influence," followed by a passage in Portuguese which I can't read, but presume reinforces your statement.
The current discussion centred around whether the ruling in the Murat case would have any influence on the forthcoming McCann v Amaral libel trial, and I suggested that I thought not, given that the Portuguese legal system is codified, meaning that each case is judged on its merits, rather than (as in the English system) on precedent.
Your subsequent comment quoted here seems to agree with me, rather than with your statement "previous judgements have influence."