Opinion of Mr Advocate General Mischo 8 March 1990
1 Original language: French.
2 OJ 1988 L 70, p. 16.
3 Council Directive concerning the prohibition of certain substances having a hormonal action and of any substances having a thyrostatic action (OJ 1981 L 222, p. 32).
4 Council Directive of 31 December 1985 prohibiting the use in livestock farming of certain substances having a hormonal action (OJ 1985 L 382, p. 228).
5 Judgment in Case 68/86 United Kingdom v Council [1988] ECR 855.
6 Judgment in Case 138/79 Roquette Frères v Council [1980] ECR 3333, at p. 3358, paragraph 25.
7 Judgment in Case 138/78 Stölting v Hauptzollamt Hamburi Jonas [1979] ECR 713, at p. 722, paragraph 7.
8 OJ 1984 C 170, p. 4.
9 OJ 1985 C 288, p. 158.
10 OJ 1985 C 44, p. 14.
11 Council Directive of 28 September 1981 on the approximation of the laws of the Member States relating to veterinary medicinal products (OJ 1981 L 317, p. 1).
12 Council Directive of 28 September 1981 on the approximation of the laws of the Member States relating to analytical, pharmaco-toxicological and clinica! standards and protocols in respect of the testing of veterinary medicinal products (OJ 1981 L 317, p. 16).
13 P. Pescatore: Les principes généraux du droit en tant que source du droit communautaire in: Rapports du 12e congrès de la Fédération internationale pour le droit européen, Paris, 1986, Vol. 1, p. 35.
14 Sec the aforementioned Slotting judgment and the judgment in Case 59/83 Biovilac [1984) ECR 4057, paragraph 17.
15 OJ 1985 L 191, p. 46.
16 See the judgment of the Court in Case 63/83 Regina v Kent Kirk [1984] ECR 2689, and also the judgment of the Court in Case 80/86 Kolpinghuis Nijmegen [1987] ECR 3969, where the Court included lhe principle that provisions may not have retroactive effect amongst the general principles of law forming part of Community law.
17 See in particular the judgments in Case 99/78 Decker v Hauptzollamt Landau [1979] ECR 101 and, most recently, in Case C-337/88 Società agricola fattoria alimentare SpA [1990] ECR I-1