The CJEU interprets EU law, including environmental regulations, to make sure it is applied in the same way in all EU countries and settles legal disputes between national governments and EU institutions.

The ENPE case law database supports the network of environmental public prosecutors in the EU by providing them with relevant criminal case law and related documents from the various Member States. It is only available for certain ENPE members, and it covers three areas of environmental law: air pollution, waste and wildlife.