William Worster

[William Worster @wtworster]

Excited to share that I will join the Univ of Memphis as Assoc Prof of Law in Aug 2026, teaching Intl Law & Torts. Grateful for the opportunity & warm welcome. Many thanks to The Hague Univ of Appl Sci - my academic home for the last 17 yrs. Looking forward to the next chapter.

[William Worster @wtworster]

My new article “Assurances on the Use of Exported Arms in the Gaza Conflict,” in the Israel Law Rev. I develop a framework for evaluating assurances that exported arms will not be misused and argue that the assessment of Israeli assurances was lacking.
https://t.co/yNsRbAwjav

[William Worster @wtworster]

My new post on the pending ECtHR Ireland v UK case & the UK’s 1977 pledge to the Court on the “five techniques.” Because it was made to the Court, the UK’s Legacy Act raises not only Article 3 concerns inter partes but also obligations to the Court itself. https://t.co/ixjwFym2IH

[William Worster @wtworster]

My interview this morning with TVP World on Trump's State of the Union address and its implications for NATO and Ukraine. https://t.co/gSqcoiArRV

[William Worster @wtworster]

My recent interview with TVP World on the ending of the New Start nuclear arms treaty, the ongoing negotiations to find a way forward, and the $12 trillion "Dmitriev Package".

https://t.co/25IZETB29t

[William Worster @wtworster]

My TVP World interview on Trump’s tariff threats over Greenland and how the EU could respond with the “trade bazooka” (Anti-Coercion Instrument).
https://t.co/ZiIMOXtu9w

[William Worster @wtworster]

Happy to share my recent TVP World interview on Trump, Venezuela, Greenland, and what these developments may mean for the future of international law. https://t.co/lf47utbpVL

[William Worster @wtworster]

New article in the Boston Univ Intl Law Journal: “The Right to Leave Ukraine.” Ukr’s wartime ban preventing most men from exiting violates the ICCPR’s freedom to leave, fails necessity/proportionality, & discriminates on the basis of sex. https://t.co/CGaQwh3FvR

[William Worster @wtworster]

Very happy to announce that my contribution to the Elgar Concise Encyclopedia of Migration and Asylum Law on “Diplomatic Assurances” has been published. Thanks to Prof. Vincent Chetail and the team for the invitation to participate in this book!
https://t.co/GdHosgCm06

[William Worster @wtworster]

Just finished the Open‑Source Intelligence (OSINT) course from Basel Institute on Governance.
Analyzing publicly/commercially available info to pursue a range of investigations - including human rights violations and international criminal justice.

[William Worster @wtworster]

Pleased to share my interview with the University of Amsterdam on my PhD about diplomatic assurances in expulsion—when they are binding, when they truly constrain conduct, and when they create obligations under international law.
https://t.co/J3O1szw4KZ

[William Worster @wtworster]

My new book chapter is now available open access!
Citizenship by Investment and the Right to Change Nationality https://t.co/De2UFuTzA7

[William Worster @wtworster]

Just out in Brooklyn J. Int’l L.: “Questioning US Immigration Law Compliance with Treaties for Trade & Investment.” I argue that certain US visa rules clash with USMCA, BITs, FCNs and other treaty obligations.
https://t.co/PM7Qd9wiKb
#IntlLaw #TradeLaw #ImmigrationLaw

[William Worster @wtworster]

In case you missed it: my blog post asks whether certain deportations of DACA recipients, refugees & potentially US citizens, could qualify as the crime against humanity of deportation under international criminal law. Curious to hear your take!
https://t.co/ZKB2p63hzH

[William Worster @wtworster]

My new chapter is out in Investment Migration in Europe and the World

I argue that CBI debates neglect human rights: the right to a nationality, to change it, and the ban on nationality-based discrimination.

https://t.co/Juil5TGrLi
#CJEU #HumanRights

[William Worster @wtworster]

Over the past academic year, I had the privilege of visiting at the University of Makeni, Sierra Leone, where I taught International Criminal Law in the LLM program. It was a rich and rewarding experience at a rising institution. Thank you UNIMAK for the invitation!

[William Worster @wtworster]

@kevinjonheller Thank you! Finally made it!

[William Worster @wtworster]

Proud to announce my successful PhD defence at the Univ of Amsterdam. I am deeply indebted to my supervisors Prof. dr. Catherine Brölmann and Prof. dr. Jean d’Aspremont. I also want to thank my colleagues at The Hague University, and - of course - my family for their support.

[Dimitry Kochenov @ProfKochenov]

A longer analysis of the judgment with @guilleiniguezm is on @SSRN in case it could be of interest: https://t.co/tRPQK6Nrhi

[William Worster @wtworster]

I've reached the end of my Scheidt Fellowship in Atrocity Prevention at the Inst for Genocide & Mass Atrocity Prev at Binghamton Univ. It's been outstanding, combining study & curricular work, focused on intl atrocities. If you're interested, apply!
https://t.co/MejYLT78d8