| UK-Rwanda migration and economic development partnership M Gower, P Butchard House of commons library, 2022 | 27 | 2022 |
| Commissions of inquiry: problems and prospects C Henderson Bloomsbury Publishing, 2017 | 20 | 2017 |
| The responsibility to protect and the failures of the United Nations Security Council PM Butchard Hart Publishing, 2020 | 16 | 2020 |
| Back to San Francisco: Explaining the Inherent Contradictions of Article 2(4) of the UN Charter P Butchard Journal of Conflict and Security Law, 2018 | 11 | 2018 |
| Digest of State Practice 1 January–30 June 2014 T Ruys, N Verlinden, M Aronsson, R Buchan, P Butchard, K Chan, ... Journal of the Use of Force and International Law 1 (2), 323-373, 2014 | 8 | 2014 |
| Principles of international law: a brief guide P Butchard House of Commons, 2020 | 7 | 2020 |
| A Functional Typology of Commissions of Inquiry P Butchard, C Henderson Commissions of Inquiry: Problems and Prospects, Oxford, 11-34, 2017 | 6 | 2017 |
| Conflict in Ukraine: A special Tribunal on the Crime of Aggression P Butchard House of Commons, 2024 | 5 | 2024 |
| The militarisation of space C Mills, P Butchard House of Commons Library of UK Parliament, 2021 | 5 | 2021 |
| The UK-EU Trade and Cooperation Agreement: governance and dispute settlement S Fella, P BUTCHARD House of Commons, 2021 | 4 | 2021 |
| International Regulation of Space P Butchard, C Mills House of Commons, 2022 | 3 | 2022 |
| What is the proposed WHO Pandemic Preparedness Treaty? P BUTCHARD, B Balogun House of Commons, 2022 | 2 | 2022 |
| UK war crimes in Iraq: The ICC Prosecutor’s report P Butchard | 2 | 2021 |
| Territorial integrity, political independence, and consent: the limitations of military assistance on request under the prohibition of force PM Butchard Journal on the Use of Force and International Law 7 (1), 35-73, 2020 | 2 | 2020 |
| Digest of state practice: 1 July 2017–31 December 2017 T Ruys, N Verlinden, C Vander Maelen, S Van Severen Journal on the Use of Force and International Law 5 (1), 145-187, 2018 | 2* | 2018 |
| The Responsibility to Protect when the UN Security Council Fails to Act: Is There Room for a Tertiary Responsibility? PM Butchard PQDT-Global, 2017 | 2 | 2017 |
| Afghanistan: One year under a Taliban government P BUTCHARD, C Mills, P Loft, M Ward, P Brien, J Curtis House of Commons, 2022 | 1 | 2022 |
| Digest of State Practice: 1 January–30 June 2022 General Editors:, PM Butchard, JJ Nessa Journal on the Use of Force and International Law 9 (2), 423-479, 2022 | 1 | 2022 |
| No-fly zones and Ukraine L Brooke-Holland, P Butchard House of Commons, 2022 | 1 | 2022 |
| Ukraine Crisis: Recognition, military action, and international law P Butchard < bound method Organization. get_name_with_acronym of< Organization: House …, 2022 | 1 | 2022 |
