For t he third Lord Judge Memorial Lecture in Legal Hist ory\, the Middle Temple Historical Society is deli ghted to host Mr. Justice Donal O’Donnell\, Chief Justice of the Republic of Ireland\, who will deli ver a lecture on the enduring significance of the appeal in 1916 of Sir Roger Casement.
\n \nChief Justice O’Donnell will interrogate how Casem ent’s appeal sits at a fascinating crossroads of l aw\, politics\, and identity. After being convicte d of treason for seeking German support for the Ir ish independence movement during the First World W ar\, Casement’s legal team mounted an appeal that turned on a surprisingly technical issue: whether the medieval statute under which he was charged th e Treason Act 1351 applied to acts committed outsi de the realm. The prosecution argued that treason followed the subject wherever he went\; the defenc e countered that the statute’s language did not ex tend beyond England’s borders.
\n \nThe app eal ultimately failed\, but the case became a touc hstone for debates about statutory interpretation\ , the reach of sovereign power\, and the uneasy fu sion of law and imperial politics. It also gained notoriety because of the British government’s use of Casement’s private diaries\, the so-called “Bla ck Diaries” to undermine public sympathy\, raising enduring questions about evidence\, authenticity\ , and political influence on judicial processes.\n \n
For legal practitioners today\, Casemen t’s appeal remains relevant because it encapsulate s issues that still animate modern jurisprudence: how far a state’s criminal law can extend extrater ritorially\, how courts should interpret centuries ‑old statutes in contemporary contexts\, and how p olitical pressures can shape the administration of justice. The case is a reminder that legal texts do not exist in a vacuum\; they operate within soc ial\, moral\, and geopolitical currents that can b end their meaning. For lawyers navigating question s of international jurisdiction\, human rights\, o r the use of sensitive personal material in litiga tion\, Casement’s story offers a vivid historical example of how legal reasoning\, state power\, and public perception can collide\, which have not di minished with the passing of time.
\n \nStudent members (including transfer ring lawyers) must attend the lecture and receptio n in order to be awarded the Qualifying Session. F or this event\, attending the dinner is not requir ed for the QS point.
\n \nPlease n ote that there are certain \;rules an d customs that members and guests are expected to observe when attending formal dinners at the I nn.
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