Gary Oliver
Senior Clerk
+44 (0) 207 822 7325
Antonia accepts instructions in all areas of Chambers’ practice. Recent highlights include:
Antonia was seconded to the Foreign Commonwealth and Development Office for two and a half months in 2023, working with the Sanctions and Asia Pacific Team primarily on challenges to sanctions desginations and matters of licencing.
Prior to coming to the Bar, Antonia worked as a video journalist for Reuters in Brazil and Colombia, covering the 2016 Colombian peace process (deployed to a FARC rebel camp), corruption scandals, the 2014 FIFA World Cup and the 2016 Olympic Games. Antonia also worked as a Senior Analyst for Control Risks, advising investors on ESG considerations and political, security and social developments across Latin America. Antonia chaired and featured in high-profile discussions on regional politics and business, including alongside then Colombian President, Iván Duque.
Antonia is a co-creator of The Advocacy Podcast.
Antonia accepts instructions in all areas of commercial law.
Acting for more than 700,000 Brazilian claimants (including municipalities, businesses, utility companies, individuals, religious entities and the indigenous Krenak) in proceedings against BHP Group following the collapse of the Fundão Dam at the Germano mining complex in November 2015, the worst environmental disaster in Brazilian history (led by Alain Choo-Choy KC and Andrew Fulton KC).
Obtained a five-year injunction against Persons Unknown to prohibit acts of trespass by unknown protesters at the Epsom Racecourse, acting for Jockey Club Racecourses Ltd (led by Alan Maclean KC).
Advising in respect of the enforceability of contracts used in productions in the video streaming industry, considering matters including restraint of trade, certainty of contracts and force majeure (led by Timothy Otty KC and Isabel Buchanan).
Acting unled for a promoter providing services to music producers in a contractual dispute considering issues relating to licensing agreements, an oral contract and quia timet.
Acting unled for a company in a claim against a former employee who established his own company while still employed by the former company, in breach of contract and fiduciary duty [2023]
Advising on a contractual matter.
For the claimant investment consultant, seeking damages for the breach of a London arbitration agreement following New York proceedings that were struck out for lack of jurisdiction (assisting Fraser Campbell).
Acting for the third defendant (of fifteen) to a complex claim of fraud and breach of directors’ duties valued at over £200 million in respect of a disclosure guidance hearing (assisting Victoria Windle QC).
Acting for HSBC in a £30 million claim brought by individuals who purported to invest in a series of tax mitigation schemes (assisting Harry Adamson).
Acting for the recording company regarding claims brought by the artist known as Four Tet in respect of the digital exploitation of masters recorded under an agreement made in 2001 (assisting Tom Richards).
Advising a defendant to a claim brought by Russian banks in respect of the impact of Russian sanctions (assisting Victoria Windle QC).
Acting for the claimant in a claim involving breach of fiduciary duty, dishonest assistance and conspiracy (assisting Victoria Windle QC).
Acting for gambling companies in respect of sanctions proposed by the Gambling Commission, involving alleged breaches of anti-money laundering and terrorist financing regulations (assisting Harry Adamson).
Acting for the claimants in a claim for breach of an oral agreement in respect of the transfer of a Spanish property, which included an application for a document preservation order (assisting Fraser Campbell).
Advising a public authority as to proceedings to recover debt under a government-backed loan agreement (assisting Harry Adamson).
Acting for the FCA in respect of possible breaches of the Collective Investment Scheme rules (assisting Harry Adamson).
Advising a public authority as to the terms of government-backed loan agreements (assisting Fraser Campbell).
Acting for an unfair prejudice petitioner, alleging sale at an undervalue of the group’s main asset and breach of directors’ duties (assisting Fraser Campbell).
Advising a Singaporean bank regarding its contractual obligations under a settlement agreement to make payments to the nominee of a sanctioned Iranian entity (assisting Fraser Campbell).
Acting for the manufacturer of an innovative drug, seeking a declaration that it continues to enjoy market exclusivity in the UK, notwithstanding post-Brexit developments in EU case law (assisting Fraser Campbell).
Acting for the defendant to a claim of misrepresentation regarding the seven-figure sale by auction of a vintage racing car (assisting Fraser Campbell).
Acting for multiple defendants to breach of warranty claims following the sale of a chain of gyms (assisting Fraser Campbell).
Acting for an unfair prejudice petitioner, alleging exclusion from management and information, and self-dealing by the majority shareholders (assisting Fraser Campbell).
Antonia accepts instructions in all areas of civil liberties and human rights law.
Obtained a five-year injunction against Persons Unknown to prohibit acts of trespass by unknown protesters at the Epsom Racecourse, acting for Jockey Club Racecourses Ltd (led by Alan Maclean KC).
Intervened on behalf of a number of civil society organisations supported by the Global Strategic Litigation Council Request in relation to a request for an advisory opinion from the Inter-American Court of Human Rights by Colombia and Chile, providing an amicus curiae on matters involving climate displacement (led by Ali Al-Karim)
Provided a joint opinion on the Illegal Migration Bill for the charity Freedom From Torture (with Raza Husain KC, Jason Pobjoy, George Molyneaux and Eleanor Mitchell).
Intervened on behalf of the Global Strategic Litigation Council for Refugee Rights and La Corporación Opción Legal by way of an amicus curiae filed in the Constitutional Court of Colombia on the right to work and due process under international law. The appeal was a test case brought on behalf of 39 Venezuelan asylum-seekers who claim that they have a right to work while their asylum applications are being processed (led by Raza Husain KC).
Intervened on behalf of the Global Strategic Litigation Council for Refugee Rights and the International Detention Council by way of an amicus curiae filed in proceedings in the Supreme Court of Mexico concerning Mexico’s practice of detaining asylum seekers under international law and domestic constitutional law (led by Raza Husain KC).
Acting successfully for the Secretary of State in a judicial review and Article 5 claim concerning the recall to prison of prisoners released on licence (assisting Tom Richards).
Acting for the claimant in a challenge to the Secretary of State’s procedure by which it intends to remove asylum seekers to Rwanda (assisting Harry Adamson).
Acting for the Parole Board in a case regarding the circumstances in which it becomes functus officio upon setting a date for a prisoner's release (assisting Fraser Campbell).
Acting for Ukraine in respect of Russian violations of the European Convention on Human Rights (assisting Jason Pobjoy).
Acting successfully for the appellants, a child and his mother, both Venezuelan asylum seekers who were detained in Trinidad and Tobago, in Habeas Corpus proceedings before the Privy Council. The Board granted a declaration that the detention of the child, absent a deportation order, had been unlawful, and remitted the proceedings to the High Court of Trinidad and Tobago as to the reasonableness of the period for which the appellants had been detained. This resulted in the High Court ordering the appellants’ release (assisting Tom Richards).
Acting for a major art museum in the United States in relation to a dispute brought by a State in relation to a piece of art which is said to have been unlawfully obtained, raising issues as to the protection of property under Article 1 protocol 1 of the European Convention on Human Rights (assisting Jason Pobjoy).
Antonia accepts instructions in all areas of public international law.
Intervened on behalf of a number of civil society organisations supported by the Global Strategic Litigation Council Request in relation to a request for an advisory opinion from the Inter-American Court of Human Rights by Colombia and Chile, providing an amicus curiae on matters involving climate displacement (led by Ali Al-Karim)
Was seconded for two and a half months to the Foreign Commonwealth and Development Office's Legal Directorate, working primarily on challenges to sanctions designations.
Intervened on behalf of the Global Strategic Litigation Council for Refugee Rights and the International Detention Council by way of an amicus curiae filed in proceedings in the Supreme Court of Mexico concerning Mexico’s practice of detaining asylum seekers under international law and domestic constitutional law (led by Raza Husain KC).
Intervened on behalf of the Global Strategic Litigation Council for Refugee Rights and La Corporación Opción Legal by way of an amicus curiae filed in the Constitutional Court of Colombia on the right to work and due process under international law. The appeal was a test case brought on behalf of 39 Venezuelan asylum-seekers who claim that they have a right to work while their asylum applications are being processed (led by Raza Husain KC).
Acting for Ukraine in respect of Russian violations of the European Convention on Human Rights (assisting Jason Pobjoy).
Acting for a major art museum in the United States in relation to a dispute brought by a State in relation to a piece of art which is said to have been unlawfully obtained, raising issues as to the protection of property under Article 1 protocol 1 of the European Convention on Human Rights (assisting Jason Pobjoy).
Antonia accepts instructions in all areas of public law.
Was seconded for two and a half months to the Foreign Commonwealth and Development Office's Legal Directorate, working primarily on challenges to sanctions designations.
Provided a joint opinion on the Illegal Migration Bill for the charity Freedom From Torture (with Raza Husain KC, Jason Pobjoy, George Molyneaux and Eleanor Mitchell).
Advising on a regulatory matter (led by Tom de la Mare KC and Ravi Mehta).
Acting for the claimant in a challenge to the Secretary of State’s procedure by which it intends to remove asylum seekers to Rwanda (assisting Harry Adamson).
Acting successfully for the appellants, a child and his mother, both Venezuelan asylum seekers who were detained in Trinidad and Tobago, in Habeas Corpus proceedings before the Privy Council. The Board granted a declaration that the detention of the child, absent a deportation order, had been unlawful, and remitted the proceedings to the High Court of Trinidad and Tobago as to the reasonableness of the period for which the appellants had been detained. This resulted in the High Court ordering the appellants’ release (assisting Tom Richards).
Acting for the Parole Board in a case regarding the circumstances in which it becomes functus officio upon setting a date for a prisoner's release (assisting Fraser Campbell).
Acting successfully for the Secretary of State in a judicial review and Article 5 claim concerning the recall to prison of prisoners released on licence (assisting Tom Richards).
Advising the Cabinet Office in respect of government commitments following an inquiry (assisting Jason Pobjoy).
Advising a public body on the construction of the Human Fertilisation and Embryology Act 1990 (assisting Jason Pobjoy).
Acting for gambling companies in respect of sanctions proposed by the Gambling Commission, involving alleged breaches of anti-money laundering and terrorist financing regulations (assisting Harry Adamson).
Acting for a health provider in respect of an investigation by the Local Government Ombudsman into events in a care home during the COVID-19 pandemic (assisting Jason Pobjoy).
Advising the Ministry of Defence as to proposed amendments to arrangements with contractors in a British overseas territory (assisting Fraser Campbell).
Advising a public authority as to the terms of government-backed loan agreements (assisting Fraser Campbell).
Acting for the manufacturer of an innovative drug, seeking a declaration that it continues to enjoy market exclusivity in the UK, notwithstanding post-Brexit developments in EU case law (assisting Fraser Campbell).
Antonia accepts instructions in all areas of environmental law.
Acting for more than 700,000 Brazilian claimants (including municipalities, businesses, utility companies, individuals, religious entities and the indigenous Krenak) in proceedings against BHP Group following the collapse of the Fundão Dam at the Germano mining complex in November 2015, the worst environmental disaster in Brazilian history (led by Alain Choo-Choy KC and Andrew Fulton KC).
Intervened on behalf of a number of civil society organisations supported by the Global Strategic Litigation Council Request in relation to a request for an advisory opinion from the Inter-American Court of Human Rights by Colombia and Chile, providing an amicus curiae on matters involving climate displacement (led by Ali Al-Karim)
Antonia accepts instructions in all areas of sports law.
Obtained a five-year injunction against Persons Unknown to prohibit acts of trespass by unknown protesters at the Epsom Racecourse, acting for Jockey Club Racecourses Ltd (led by Alan Maclean KC).
Advising on a regulatory matter (led by Tom de la Mare KC and Ravi Mehta).
Has led a number of investigations for the Premier League's Five-Step Process in relation to the transfer of Academy Players.
Advising on a contractual matter.
Antonia accepts instructions in all areas of media and entertainment law.
Advising in respect of the enforceability of contracts used in productions in the video streaming industry, considering matters including restraint of trade, certainty of contracts and force majeure (led by Timothy Otty KC and Isabel Buchanan).
Acting unled for a promoter providing services to music producers in a contractual dispute considering issues relating to licensing agreements, an oral contract and quia timet.
Assisting in a confidential investigation.
Acting for a major art museum in the United States in relation to a dispute brought by a State in relation to a piece of art which is said to have been unlawfully obtained, raising issues as to the protection of property under Article 1 protocol 1 of the European Convention on Human Rights (assisting Jason Pobjoy).
Acting for the recording company regarding claims brought by the artist known as Four Tet in respect of the digital exploitation of masters recorded under an agreement made in 2001 (assisting Tom Richards).
Antonia accepts instructions in all areas of employment law.
Acted for an employer in correspondence with an employee, in respect of the organisation's preferred pronouns policy, in the context of balancing the rights of individuals with competing protected characteristics in respect of the organisation's approach to discrimination and harassment (led by Kerenza Davis).
Acting for an inter-dealer broker and certain of its employees in respect of a third claim brought by the claimant alleging indirect discrimination, including drafting grounds of resistance and making applications for strike out and deposit orders in respect of a litigant where there was already a limited civil restraint order in force in the county court and two previous claims had been struck out (assisting Craig Rajgopaul).
Advising a consulting company and drafting grounds of resistance in respect of a sprawling disability discrimination claim (assisting Craig Rajgopaul).
Advising a senior trader and drafting particulars of claim in respect of claims in whistleblowing, victimisation and discrimination against a leading UK bank (assisting Craig Rajgopaul).
Acting for the claimant, a senior trader, in a 6-week trial in the Employment Tribunal, bringing claims for whistleblowing (including allegations in respect of a bribe) and parental leave detriment (assisting Craig Rajgopaul and Emmeline Plews). This included assisting with the preparation of cross-examination of 28 witnesses and detailed legal and factual closing submissions. The case was widely reported in the press.
Antonia accepts instructions in all areas of sanctions law.
Was seconded for two and a half months to the Foreign Commonwealth and Development Office's Legal Directorate, working primarily on challenges to sanctions designations.
Advising a defendant to a claim brought by Russian banks in respect of the impact of Russian sanctions (assisting Victoria Windle QC).
Advising an international businessman in respect of anti-corruption sanctions (assisting Jason Pobjoy).
Antonia accepts instructions in all areas of competition law.
Assisted Marie Demetriou KC, Daniel Piccinin and Ali Al-Karim in proceedings before the Supreme Court.
Advising a corporate group in respect of potential divestiture remedies imposed by the Competition and Markets Authority (assisting Harry Adamson).
VAT registration number: 423610335
Barristers regulated by the Bar Standards Board
Gary Oliver
Senior Clerk
+44 (0) 207 822 7325
Derek Sutton
Deputy Senior Clerk
+44 (0) 207 822 7327
Adam Sloane
Deputy Senior Clerk
+44 (0) 207 822 7326
Dean Tolman
Clerk
+44 (0) 207 822 7331
Billy Brian
Clerk
+44 (0) 207 822 7339
Marc Armstrong
Clerk
+44 (0) 207 822 7330
Adam Fuschillo
Clerk
+44 (0) 207 822 7329
Danny Compton
Clerk
+44 (0) 207 822 7338
Sophie Reeve
Clerk
+44 (0) 207 822 7324
Toby Dennison
Clerk
+44 (0) 207 822 7328
Daniel Higgins
Clerk
+44 (0) 207 822 7322
Lilly-Grace Hilliard
Clerk
+44 (0)20 7822 7234