Beatriz is Assistant Professor in Law at the University of Sussex and a Research Fellow in Law & Regulation at UCL’s Digital Speech Lab.
Trained as a lawyer and as a social scientist, she has a PhD in Economic Law and an MSc in Social Sciences of the Internet, and has held postdoctoral positions at UCL and the University of Oxford. Her research expertise lies at the intersection of law, technology, and regulation, and her areas of interest include online safety, content moderation, food environments, digital trade, competition, and consumer protection.
Beatriz is the Co-Principal Investigator of the project Platform regulation in Brazil and in the UK: designing and enforcing ‘duty of care’ frameworks, funded by the British Academy’s ODA Challenge-Oriented Research Grants 2024 Programme, supported under the UK Government’s International Science Partnerships Fund.
An Anatomy of Duty of Care in Online Safety Regulation in the UK
(With Zoe Asser, University of Sussex)
The Online Safety Act 2023, culminating over six years of debate on UK internet regulation and online safety, received Royal Assent in October 2023. Its central novelty—statutory duties of care for internet service providers—marks a significant departure from previous platform-led content moderation. However, we argue that key legislative changes during the bill’s passage fundamentally altered the Act’s ambition to make the UK “the safest place in the world to be online”.
Using process tracing (Pickering, 2022), we examine the duty of care concept’s evolution throughout the Act’s lifecycle, drawing on eighteen semi-structured interviews and qualitative analysis of legislation, Ofcom’s codes and guidance, and consultation submissions.
Building on risk-based regulation literature (Black & Baldwin, 2012; Baldwin & Black, 2016), we argue that a regulatory approach grounded on a duty of care attempts to balance conflicting interests. However, this concept has been significantly shaped by disputed interpretations and political compromises during the Act’s passage. Specifically, it shifted from an overarching statutory duty to specific duties related to illegal content and child safety—contradicting the initial ‘safety by design’ framework for more holistic and proactive risk mitigation. We show that disputes persist regarding the interpretation of the enshrined duties, the scope of Ofcom’s powers, the level of detail it must provide to regulated services, and indeed what these services must do to comply.
Our findings have implications within and beyond the UK, illuminating the Act’s possibilities and limitations and offering insights for other jurisdictions considering internet regulation.
Between Courts and Congress: Marco Civil da Internet and the Future of Platform Regulation in Brazil
(With Ivar Hartmann, INSPER)
This paper examines the STF’s pending ruling on the constitutionality of Article 19 of the MCI—the cornerstone provision establishing the intermediary liability regime in Brazil—against the wider context. Through analysis of the current legal framework, the STF’s decision, and wider political economy considerations, we address the following research question: To what extent are existing civil liability mechanisms in the Marco Civil da Internet sufficient to adequately address the nature and functioning of modern information and communication systems controlled by the largest digital platforms, and what impact will the Supreme Court’s forthcoming decision on platform liability have on the future of platform regulation in Brazil?
We argue that while the STF’s ruling on the constitutionality of the MCI’s intermediary liability regime will significantly impact the future of platform regulation in Brazil, it represents just one component of a necessary broader (and urgent) reform agenda. Platform regulation in Brazil has historically been shaped by both courts and Congress, and this dual influence will continue to be crucial as the country develops more comprehensive approaches to platform regulation.
Reduce or Remove: Demotion, Content Moderation and Human Rights. Law and Philosophy (2026), with J. Howard
Platform Duty of Care after the Supreme Court Ruling on the Marco Civil da Internet. Seqüência (2026), with I. Hartmann, R. Costa, & F. Brito Cruz
Defining the boundaries of journalism and news publishers: implications of the Online Safety Act 2023 for the public interest and media freedom. Journal of Media Law (2025), with J. Townend
Regulatory intermediaries in content moderation. Internet Policy Review (2025)
When non-consensual intimate deepfakes go viral: The insufficiency of the UK Online Safety Act. Computer Law & Security Review (2024)
Moderating synthetic content: the challenge of generative AI. Philosophy & Technology (2024), with S. Fisher & J. Howard
The Bypass Strategy: platforms, the Online Safety Act and future of online speech. Journal of Media Law (2024), with E. Judson & J. Howard
Brazil’s distinct path in AI regulation. Journal of AI Law and Regulation (2024), with L. S. Mendes
Inter-agency coordination and digital platform regulation: lessons from the Whatsapp case in Brazil. International Review of Law, Computers & Technology (2024)
Norm entrepreneurship in digital trade: the Singapore-led save of digital trade agreements, World Trade Review (2024), with E. Jones & R. Tavengerwei
Should Politicians Be Exempt from Fact-Checking?, Journal of Online Trust and Safety (2024), with S. Fisher, K. Arabaghatta Basavaraj, & J. Howard
Is iFood Starving the Market? Antitrust Enforcement in the Market for Online Food Delivery in Brazil, World Competition (2023)
The Politics and Economics of Brazilian Competition Law, Latin American Law Review (2023)
Competencia en cadenas globales de valor en el sector de alimentos: un análisis del caso brasileño, Latin American Law Review (2023), with D. R. Coutinho, C. Saito, & L. Kharmandayan
Vírus e Telas: o direito econômico das plataformas digitais na pandemia de COVID-19, Revista Direito e Práxis (2022), with P. B. Gonçalves & D. R. Coutinho
Regulating digital ecosystems: bridging the gap between competition policy and data protection, Industrial and Corporate Change (2021), with V. Sinha & S. Srinivasan
Ajustando as lentes: novas teorias do dano para plataformas digitais, Revista de Direito da Concorrência (2021), with D. R. Coutinho
A global panel database of pandemic policies (Oxford COVID-19 Government Response Tracker), Nature Human Behaviour (2021), with T. Hale, N. Angrist, R. Goldszmidt, A. Petherick, T. Phillips, S. Webster, E. Cameron-Blake, L. Hallas, S. Majumdar & H. Tatlow
Planejamento urbano do futuro, dados do presente: a proteção da privacidade no contexto das cidades inteligentes, Revista Brasileira de Estudos Urbanos e Regionais (2020), with D. Antonialli
Regulation of Uber in São Paulo: from conflict to regulatory experimentation, International Journal of Private Law (2018), with R. Zanatta
Brazil’s Fair Digital Competition Bill Offers an Alternative to Regulating Big Tech, ProMarket (2025)
Current Challenges in Digital Elections: Lessons from Electoral Regulation and Digital Campaigning in Brazil, Weizenbaum Discussion Paper No. 52 (2025), with Clara Iglesias Keller, Gabriel Wajman, Francisco Brito Cruz, Bruno Bioni, Laura Schertel, Gabriel Fonseca, Nina Fernandes dos Santos
Deepfakes, the Weaponisation of AI Against Women and Possible Solutions, Verfassungsblog (2024)
Synthetic Politics: Preparing Democracy for Generative AI (2024), with Demos and UCL's Digital Speech Lab
Online Safety and Pro-Competition Regulation: Friends or Foes?, TechReg Chronicle (2024)
The road to regulation of artificial intelligence: the Brazilian experience, Internet Policy Review (2023), with L. S. Mendes
A Primer on the UK Online Safety Act, Verfassungsblog (2023), with L. S. Mendes
How Should We Regulate LLM Chatbots? Lessons from Content Moderation, The Digital Constitutionalist (2023), with J. Howard
Rethinking Regulation for Dynamic Digital Ecosystems, Network Law Review (2023)
In Brazil, Platform Regulation Takes Center Stage, Tech Policy Press (2023)
It’s time to talk digital trade, UK Trade Policy Observatory (2020), with E. Jones
Oral evidence House of Lord's Communications and Digital Committee on additional online safety measures (September 2025).
Written response to Ofcom's draft guidance 'safer life online for women and girls' (May 2025).
Written evidence to Parliament's inquiry into social media, misinformation and algorithms (January 2025).
Expert commentary to Meta’s Oversight Board case 'Explicit AI Images of Female Public Figures' (decision published in July 2024).
Written evidence to UK Government Pornography Review, discussing non-consensual intimate deepfakes (March 2024).
Expert commentary to Meta’s Oversight Board case 'Altered Video of President Biden' (decision published in February 2024).
Written evidence to House of Lords Communications and Digital Select Committee Inquiry on Large language models (October 2023).
Written evidence to the International Trade Committee, UK House of Commons Inquiry on Digita Trade and Data (February 2021).
Internet Law & Regulation (module convenor), LLB
Law, Innovation and Technology (module convenor), LLB
Media Law & Regulation, LLB
Law and Policy of the Digital Economy, LLM
Cyber Law, LLM
Law & Public Policy, MPP (2020-2022)
Email: b.kira[at]sussex.ac.uk
Details about teaching and supervision available here.