Reanne MacKenzie is developing a broad practice as sole and junior counsel a range of Chambers’ specialisms including commercial litigation, group litigation, property, environmental and EU law. She has gained wide experience of high value commercial litigation and arbitration, such as acting in the Post Office Group Litigation. Reanne also acts for the Government, including being instructed in the Cyprus Colonial Group Litigation.
Reanne graduated from Emmanuel College, Cambridge with a First in History. She was awarded a distinction on the GDL and an outstanding on the BPTC, both from City University Law School. She was awarded the Pegasus Scholarship from Inner Temple for 2019 and will spend 6 weeks on secondment in Bermuda.
Expertise
Commercial
Reanne has experience of being led in complex commercial litigation and arbitration, with particular focus on contractual disputes. She is also instructed as sole counsel in smaller commercial claims. Reanne has been one of the five counsel team, from Henderson, acting for over 500 claimants in the Post Office Group Litigation. The claimants are suing the Post Office in relation to its point of sale and accounting IT systems (“the Horizon Issues”) as well the correct construction and interpretation of the Subpostmaster contract (“the Common Issues”). The Common Issues Judgment was a landmark case on relational contracts and implied terms: [2019] EWHC 606 (QB)
The Post Office Litigation has been identified by ‘The Lawyer’ as one of its Top 20 cases for 2018
Representative cases
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The Post Office Group Litigation (2018/19) - [2019] EWHC 606 (QB)
Acting for over 500 Claimants in claim against Post Office relating to its point of sale and accounting IT systems.
The case is identified by The Lawyer as one of its Top 20 cases for 2018.
Landmark victory in the Post Office Group Litigation
Product Liability & Group Litigation
As a third six pupil Reanne assisted in preparing the successful interlocutory application for security for costs in the Seroxat Group Litigation (led by Charles Gibson QC).
Reanne was also instructed by the Government in the high profile Cyprus Colonial Group Litigation. Reanne travelled to the national archives at Nicosia, Cyprus in order to assist in the preparation of the case. This work was a vital contribution to the case and the parties eventually reaching a settlement. Reanne also acted in large scale vaccine damage cases.
Representative cases
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Sandra Bailey & Others v GlaxoSmithKline UK Limited [2017] EWHC 3195 (QB)
As a third six pupil Reanne assisted in preparing the interlocutory application for security for costs in the Seroxat Group Litigation (led by Charles Gibson QC).
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The Post Office Group Litigation (2018/19)
Acting for over 500 Claimants in claim against Post Office relating to its point of sale and accounting IT systems.
The case is identified by The Lawyer as one of its Top 20 cases for 2018.
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Volkswagen NOx Emissions Group Litigation (2018/19)
Property
Reanne is regularly instructed in property disputes, including in an advisory capacity, such as the proper procedure for evicting tenants. She has represented various housing associations, local authorities and private landlords. Reanne also has experience of bringing and defending mortgage possession hearings as well as claims for forfeiture. Reanne has also been instructed to appear at the First Tier Tribunal in long-term leasehold disputes.
Environmental and Public Law
As a third six pupil Reanne assisted senior counsel in advising clients in relation to the EU Landfill Directive and waste acceptance procedures at landfill sites. She was also part of the counsel team who sought to judicially review the Prime Minister’s decision to trigger Article 50.
Representative cases
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Wilson & Others v The Prime Minister [2018] EWHC 3520 (Admin)
Acting for the Claimants in seeking permission to judicially review the Prime Minister’s decision to trigger Article 50 on the basis that corrupt and illegal practices by Vote Leave as well as possible Russian interference, and the criminal investigation into the largest donor Arron Banks, before and during the referendum, undermined the integrity of the result and rendered the decision to leave the EU void.
EU Law
Reanne has assisted senior counsel in various research tasks in relation to intra-EU ISDS and the Energy Charter Treaty (“ECT”) as well as the future of intra-EU Bilateral Investment Treaties (“BITs”).
Reanne assisted in preparing the claimant’s successful appeal to the Court of Appeal in Micula v Romania and European Commission (as Intervener) (led by Professor Sir Alan Dashwood QC and Patrick Green QC).
Representative cases
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Micula v Romania and European Commission (as Intervener) [2018] EWCA Civ 1801
Acting for the Claimant in his successful appeal to the Court of Appeal in which the Court accepted that the grant of security of by Romania must be a quid pro quo for the upholding of the stay (led by Professor Sir Alan Dashwood QC and Patrick Green QC).
Personal Injury
Reanne is frequently instructed in personal injury claims. She has experience of representing insurers and claimants, and has been instructed both on her own account and as a junior. As a pupil, Reanne gained experience of a range of different personal injury matters, including road traffic accidents, fatal accidents, employers’ liability, occupiers’ liability, as well as attending JSMs
News and articles
High Court critical of approach to evidence in...
Final judgment in the Post Office Group Litigation
Henderson Chambers supporting The London Legal...
Guideline case on recusal applications (Bates v...
Landmark victory in the Post Office Group...
Landlord granted injunction against tenant using...
Instructing Reanne MacKenzie
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- Government Legal Department, Junior Junior Scheme (22/01/2018 to 31/05/2022)
- Year of Call, Inner Temple (2016)
- COMBAR
- Health & Safety Lawyers’ Association
- BA (First Class Honours, Cantab)
- MA (Cantab)
- BPTC Exhibition Scholarship from Inner Temple
- GDL Exhibition Scholarship from Inner Temple
- Dick Longden Prize from Emmanuel College, Cambridge
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Legal Status: Barrister
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