Lord Sumption, a former Justice of the UK Supreme Court, has characterized Israel's military actions in Gaza as 'grossly disproportionate,' asserting that there exists 'at least an arguable case' that such conduct may constitute genocide.

Serving on the UK's highest court from 2012 to 2018, Sumption became known for his public statements on various issues and has recently garnered attention for his critical views on government policies regarding international relations.

Last year, Sumption was a leading signatory of a letter alleging that the UK government's military support for Israel could breach international law.

In September 2023, the Labour government chose to suspend certain arms export licenses to Israel but exempted components for F-35 fighter jets, a decision subject to legal scrutiny.

In conversation with the Guardian, Lord Sumption elaborated on his reasoning for signing the aforementioned letter, emphasizing the complexities of establishing intent in genocide cases.

He referred to the provisional decision of the International Court of Justice (ICJ), suggesting it indicated that there was a valid legal argument to consider.

Israel has consistently denied any allegations of genocide, defending its military actions as measures of self-defense in the context of ongoing conflicts with Hamas.

The Israeli government has also critiqued the ICJ's position on the matter.

Sumption's remarks come in advance of the release of his new book, The Challenges of Democracy: And The Rule of Law, which focuses on perceived threats to democratic principles, including restrictions on free speech.

Although the book does not specifically address the Gaza situation, Sumption has voiced concerns regarding societal discussions around contentious issues such as Palestinian rights and trans rights.

Asserting that pro-Palestinian supporters face significant challenges in various European countries, including Germany, where measures to inhibit such expressions are reportedly underway, Sumption noted the complex landscape of free speech related to these debates in the UK. He commented on the elevated scrutiny facing pro-Palestinian demonstrations, suggesting it is often presumed that support for Palestine is inherently objectionable.

Renowned for his conservative perspectives, Sumption identifies as a 'qualified libertarian' and gained a wider public profile during the COVID-19 pandemic for his outspoken critiques of government lockdown measures.

He expressed a history of voting for winning parties until 2019, when he opted for the Liberal Democrats over the Conservative Party, due to discomfort with leadership under Boris Johnson.

Analysing the political landscape, Sumption described the changes in leadership following Johnson's and Liz Truss's exits as indications of resilience within the British constitutional framework.

He affirmed that the parliamentary system exhibited a capacity to respond to leadership challenges, highlighted by the dispersion of power among Members of Parliament.

Despite acknowledging the positive outcomes of the parliamentary responses, Sumption cautioned about the risks posed by increasing societal divisions and 'moral absolutism,' suggesting such developments could undermine consensual governance.

He compared the current state of the UK with other nations where power is concentrated in the executive branch, particularly in the context of presidential systems.