This is consistent both with case-law of the Court of Justice (cf. notably case-law on the ‘precautionary principle’ in Article 191(2) of the Treaty on the Functioning of the European Union: judgment of the CFI of 11 September 2002, Case T-13/99 Pfizer v Council, with numerous references to earlier case-law; and a series of judgments on Article 33 (ex-39) on the principles of agricultural law, e.g. judgment of the Court of Justice in Case 265/85 Van den Berg [1987] ECR 1155: scrutiny of the principle of market stabilisation and of reasonable expectations) and with the approach of the Member States' constitutional systems to ‘principles’, particularly in the field of social law.
Tagann sé seo le cásdlí na Cúirte Breithiúnais (féach go háirithe an cásdlí maidir le ‘prionsabal an réamhchúraim’ in Airteagal 191(2) den Chonradh ar Fheidhmiú an Aontais Eorpaigh: breithiúnas na Cúirte Céadchéime an 11 Meán Fómhair 2002, Cás T–13/99, Pfizer v. An Chomhairle, le tagairtí iomadúla don chásdlí roimhe sin; agus sraith breithiúnas ar Airteagal 33 (sean-Airteagal 39) maidir le prionsabail dhlí na talmhaíochta, m.sh. breithiúnas na Cúirte Breithiúnais C–265/85, Van den Berg, [1987] ECR 1155: mionscrúdú ar phrionsabal chobhsú an mhargaidh agus ar an ionchas réasúnach) agus le cur chuige chórais bhunreachtúla na mBallstát i leith na ‘bprionsabal’, go háirithe i réimse an dlí shóisialta.