Freedom to choose an occupation, as enshrined in Article 15(1) (2), is recognised in Court of Justice caselaw (see inter alia judgment of 14 May 1974, Case 4/73 Nold [1974] ECR 491, paragraphs 12 to 14 of the grounds; judgment of 13 December 1979, Case 44/79 Hauer [1979] ECR 3727; judgment of 8 October 1986, Case 234/85 Keller [1986] ECR 2897, paragraph 8 of the grounds).
Aithnítear i gcásdlí na Cúirte Breithiúnais an tsaoirse chun gairm a roghnú, mar atá cumhdaithe in Airteagal 15 (2) (féach inter alia breithiúnas an 14 Bealtaine 1974, Cás 4/73 Nold [1974] ECR, míreanna 12 go 14 de na forais; breithiúnas an 13 Nollaig 1979, Cás 44/79 Hauer [1979] ECR 3727; breithiúnas an 8 Deireadh Fómhair 1986, Cás 234/ 85 Keller [1986] ECR 2987, mír 8 de na forais).