The aim of the contribution was to explain to what extent the judge is bound by statutory law, to what extent by case law, in connection with § 13 of the Civil Code. In connection with § 13 opinions has been published about the so-called "discursive binding effect of case law", "subsidiary binding effect of case law", and even that case law is a "source of law".
As a result, case law that is not formally binding may in fact have application priority over a generally binding statutory law.