Oliver has been involved in several significant cases within employment law, including over recent years:
- Ofsted v Hewston [2025] IRLR 457, CA
- HSBC Bank v Chevalier-Firescu [2025] IRLR 268, CA
- RMT v Tyne & Wear Passenger Transport Executive (t/a Nexus) [2024] 3 W.L.R. 909, Sup Ct
- SS for DEFRA v PCS [2024] 3 W.L.R. 1059, Sup Ct
- USDAW v Tesco Stores Ltd [2025] I.C.R. 107, Sup Ct.
- R (ASLEF & 10 ors) v Secretary of State for BEIS [2023] EWHC 1781 (Admin) [2023] I.C.R. 1405
- Uber BV v Aslam & ors [2021] UKSC 5 [2021] I.C.R. 657
- Kostal UK Ltd v Dunkley & ors [2021] UKSC 47
- Unite the Union v McFadden [2021] I.R.L.R. 354, CA
- Kelly v Musicians’ Union [2020] I.R.L.R. 809, CA
- Unite the Union v Nailard [2019] ICR 28, CA
- R. (Public and Commercial Services Union) v Minister for the Cabinet Office [2018] 1 All E.R. 142, Divisional Ct
- R (FBU) v South Yorkshire Fire and Rescue Authority [2018] CMLR 27; [2018] IRLR 717 (Admin Court)
- Abrahall & Ors v Nottingham City Council & Anor [2018] IRLR 628, CA
- Govia GTR Railway v ASLEF [2017] ICR 497, CA
- Hartley & ors v King Edward VI College [2015] ICR 1143, Sup Ct
- RMT v Serco Ltd [2011] ICR 848, CA
