Court of Justice 17 April 1986, 139/85 (R. H. Kempf v Staatssecretaris van Justitie.)

OPINION OF ADVOCATE GENERAL SIR GORDON SLYNN delivered on 17 April 1986 My Lords, The Raad van State of the Netherlands has referred to the Court under Article 177 of the EEC Treaty the question: ‘Where a national of Member State A pursues within the territory of Member State B an activity which must in itself be regarded as effective and genuine work within the meaning of the Court's judgment in