Law firms Mishcon’s claimants succeed as Supreme Court rules an Act of Parliament is required to trigger Brexit Legal Business · 24 January 2017 · 3 min read Brexit Legal affairs Litigation Mishcon de Reya The Supreme Court has ruled that the UK cannot leave the EU without parliamentary approval, in a decision which means there will be a debate in the House of Commons to determine how Article 50 can be triggered.Your limit of 1 article in 30 days is up. Please login for full access or subscribe. Corporate users - click here for simple access (no password needed). For more information, please contact [email protected] Related ContentMore in this categoryRevolving Doors: latest laterals for Paul Hastings, McDermott, Proskauer and moreLaw firmsNews Editor6 Jul 2026‘Difficult, complicated and painful’ – Brexit, a decade onLaw firmsWill Lewallen24 Jun 2026‘There’s a nervousness about what is to come’ – partners across the City brace for yet another PMLaw firmsKate Peacock22 Jun 2026Sponsored briefing: Post-Brexit cross-border disputes – what next?Practice areasGuest Blog30 Apr 2021Sponsored briefing: Post-Brexit prospects: London as a dispute resolution centrePractice areasGuest Blog30 Apr 2021The Global 100 debate – Decision timeLaw firmsAlex Novarese10 Dec 2019‘A huge emotional release’ – DLA’s Adam Ibrahim on the longest trial of his career and winning Lawyer of the YearLaw firmsAnna Huntley8 Oct 2024‘It’s not always about winning and losing, it’s about preserving relationships’ – the Commercial Litigation Summit 2024Law firmsIsabel Caine9 Sep 2024‘There is total support for getting this done’ – funders and litigators react to King’s Speech litigation funding snubLaw firmsIsabel Caine21 Aug 2024