That is one of the consequences of the fact that the Union is a community based on the rule of law as stated by the Court in Case 294/83, ‘Les Verts’ v European Parliament (judgment of 23 April 1986, [1986] ECR 1339).
Is amhlaidh atá toisc gur comhphobal é an tAontas atá bunaithe ar an smacht reachta, mar a luaigh an Chúirt i gCás 294/83, ‘Les Verts’ v. Parlaimint na hEorpa (breithiúnas an 23 Aibreán 1986, [1986] ECR 1339).