xmlns:atom="http://www.w3.org/2005/Atom"
3(1)Where it is necessary, for the purpose of interpreting retained EU law in legal proceedings, to decide a question as to—
(a)the meaning or effect in EU law of any of the EU Treaties or any other treaty relating to the EU, or
(b)the validity, meaning or effect in EU law of any EU instrument,
the question is to be treated for that purpose as a question of law.
(2)In this paragraph—
“interpreting retained EU law” means deciding any question as to the validity, meaning or effect of any retained EU law;
“treaty” includes—
any international agreement, and
any protocol or annex to a treaty or international agreement.