SINN FÉIN MEP Lynn Boylan’s case against the government over a law enabling the ratification of the EU-Canada trade deal will begin in July.

Boylan is suing the government over the Arbitration (Amendment) Act 2026, which allowed the EU-Canada Comprehensive Economic and Trade Agreement (Ceta) to be ratified.

The Ceta deal, which aims to boost trade and eliminates the majority of tariffs between Canada and the European Union, has been provisionally applied in Ireland since 2017.

However, a Supreme Court judgment in 2022 deemed ratification unconstitutional, primarily because Ceta tribunals could make awards without involvement of the Irish courts.

The tribunals relate to schemes set up to allow arbitration between investors and a state.

The government said the Arbiration Act, which was signed into law by President Catherine Connolly in mid-June, allows Ceta to be ratified constitutionally.

Lynn is taking the case against the government alongside Sárán Fogarty. They are represented by FP Logue LLP.

The case is due to come before the courts again 30 July and is expected to last for six days.