Prof Cathryn Costello @profccostello.bsky.social · 05/11/2025Woke up to this. A city I love, making a great choice! 020
Reposted by Prof Cathryn CostelloDaniele Saracino @dansaracino.bsky.social · 26/10/2025A few flashlights from my latest open access publication with @judithkohlenberger.bsky.social and @bernd-parusel.bsky.social in the European Journal of Migration and Law: (1/4) brill.com/view/journal... 185
Reposted by Prof Cathryn CostelloBen Tonra @bentonra.bsky.social · 24/10/2025Tremendous event 26 November between @northeasternu.bsky.social and @ucddublin.bsky.social - where can we see positive international collaboration even during an era of fragmentation and polarisation? Join us. Contact @bentonra.bsky.social for event registration and feel free to share widely. 033
Reposted by Prof Cathryn CostelloBen Tonra @bentonra.bsky.social · 22/10/2025Not good enough. This needs investigation and consequences. 041
Reposted by Prof Cathryn CostelloSteve Peers @stevepeers.bsky.social · 21/10/2025Joint policy brief on the trafficking of migrant women workers in poorly regulated sectors, by the UN Special Rapporteur on trafficking in people (Siobhan Mullally) and UNWomen - www.linkedin.com/posts/siobh%...linkedin.comAddressing the trafficking of women migrant workers in poorly regulated sectors | Siobhán MullallyOur new joint Policy brief, just published with UN Women, addressing trafficking of women migrant workers in sectors such as agriculture, fisheries, domestic work, hospitality and garment production. ... 1106
Prof Cathryn Costello @profccostello.bsky.social · 19/10/2025Never hear about events in my home town Tralee til after the event! Take note #speirgorm Will turn up! Looks great Tedx Tralee! 000
Reposted by Prof Cathryn CostelloAndrea Maria Pelliconi @ampelliconi.bsky.social · 17/10/2025My post with Sebastian VM on #WesternSahara: does the Commission's new agreement respect the requirements established by the #CJEU in October 2024? In short: nope! 023
Prof Cathryn Costello @profccostello.bsky.social · 17/10/2025Thanks @svaroschi.bsky.social and @mariafarrell.bsky.social I have now read this blistering piece with relish. Highly recommended! 120
Reposted by Prof Cathryn CostelloAntonella Napolitano @svaroschi.bsky.social · 23/09/2025Without a shift in policy, the dominant trajectory of technology in immigration will continue to be digital surveillance. It doesn't have to be that way. Very glad to talk about our global research on technology and alternatives to detention on @techpolicypress.bsky.social. 13320
Prof Cathryn Costello @profccostello.bsky.social · 17/10/2025Looking forward to reading - migration controls - always a weak spot for human rights - now in full autocratic mode .. 010
Reposted by Prof Cathryn CostelloCatherine Briddick @catbriddick.bsky.social · 02/10/2025My book, out now! On migration law's treatment of women, gender-based violence, and the legal challenges that migrant women have brought to the rules that determine their status. I have links if you want to review a copy or read a free chapter.... global.oup.com/academic/pro... 25218
Reposted by Prof Cathryn CostelloAoife O'Donoghue @aoifemod.bsky.social · 06/10/2025The Wolfson Report treats #NorthernIreland and the international legal commitments of the UK Government - which are very clearly spelled out in the #1998Agreement - as mere political agreements. Once again it is a Treaty & requires #ECHR rights - not UK versions of them 1/3 1209
Prof Cathryn Costello @profccostello.bsky.social · 07/10/2025Thanks @hollycullenfreo.bsky.social for this public service - international labour law at the ICJ! 010
Prof Cathryn Costello @profccostello.bsky.social · 02/10/2025I despair of UK asylum developments - from bad to worse in terms of wrongheaded performative cruelty 031
Reposted by Prof Cathryn CostelloTimothy Snyder @timothysnyder.bsky.social · 02/10/2025From 1939-1945 German officers also listened to speeches from civilians about how the laws of war didn’t apply to them. And then they participated in the Holocaust, starved millions of prisoners of war, destroyed villages and cities, and were defeated. 24152902002
Reposted by Prof Cathryn CostelloSonya Cotton @sonyacotton.bsky.social · 28/09/2025So excited for this event! 151
Reposted by Prof Cathryn CostelloAhmed Ellaboudy @aellaboudy.bsky.social · 23/09/2025The programme is here! TriCON New Voices in Constitutional Law Workshop features 6 brilliant ECRs tackling diverse research inquiries, with expert feedback from leading constitutional law academics - plus a keynote session by Prof. Leah Trueblood. @tricondublin.bsky.social 032
Reposted by Prof Cathryn CostelloLaurent Pech 🇺🇦 @profpech.bsky.social · 17/09/2025"the European Commission presented today its proposal to the Council to suspend certain trade-related provisions of the Association Agreement between the EU and Israel ... as well as its proposals for sanctions on Hamas, extremist ministers and violent settlers" ec.europa.eu/commission/p...ec.europa.euCommission proposes suspension of trade concessions with Israel and sanctions on extremist ministers of the Israeli government and violent settlersFollowing the announcement of President von der Leyen in her State of the Union address, the European Commission presented today its proposal to the Council to suspend certain trade-related provisions... 011
Reposted by Prof Cathryn CostelloSean Rehaag @seanrehaag.bsky.social · 16/09/2025A busy week... My @refugeelab.ca released our report about tech and alternatives to immigration detention, co-authored by @danghez.bsky.social & @petramolnar.com, and co-published with @kaldorcentre.bsky.social and @idcoalition.bsky.social: www.unsw.edu.au/content/dam/... 11912
Reposted by Prof Cathryn CostelloAoife O'Donoghue @aoifemod.bsky.social · 04/09/2025A must read from Guy S Goodwin-Gill - his exortation at the end 'We must make it known that we do not want and will not share our space with war criminals or génocidaires.' & that we must talk & talk about genocide needs to be heard loud & clear among public international law scholars 185
Reposted by Prof Cathryn CostelloAoife O'Donoghue @aoifemod.bsky.social · 16/09/2025From myself & @colinmurray.bsky.social on the European Convention on Human Rights & very briefly (bc it is clear) why it is not plausible to claim that it is possible to leave & not breach the 1998 Good Friday/Belfast Agreement. 0133
Reposted by Prof Cathryn CostelloBritish Institute of International and Comparative Law (BIICL) @biicl.bsky.social · 13/09/2025📢 Marking 75 years of the European Convention on Human Rights (#ECHR) and 35 years of the #VeniceCommission ECHR and Venice Commission: Guarding Human Rights and the Rule of Law, and Facilitating Constitutional Resilience 📌 BIICL, London | 🗓 6–7 Nov 2025 📌 Programme now available buff.ly/hK00usl 012
Reposted by Prof Cathryn CostelloChris Bertram @crookedfootball.bsky.social · 13/09/2025Now listened all the way through and repeat my recommendation. But not for squeamish, since has EHCR and Refugee Conv gone in 10 y, possible Farage PM, mass deportation in near future, and EU transformed into vehicle of pan-Euro exclusionary "Christian" nationalism. All avoidable if we fight back. 0142
Reposted by Prof Cathryn CostelloThe BEYOND project @non-signatory.bsky.social · 10/09/2025Our new edited volume, Non-signatory States in International Refugee Law, has just been published 📌 The open access book explores the intricate relationship between the international refugee regime and states that are not signatories to the 1951 Convention and its 1967 Protocol. Read the full book:brill.comNon-signatory States in International Refugee Law"Non-signatory States in International Refugee Law" published on 09 Sep 2025 by Brill | Nijhoff. 042
Reposted by Prof Cathryn CostelloMariana Velasco-Rivera @marianavr.bsky.social · 01/09/2025Today the elected members to the judiciary in Mexico 🇲🇽 take office and so a new era of sheer uncertainty re the independence & quality of judicial admin begins. 111
Reposted by Prof Cathryn CostelloMigration Observatory @migobs.bsky.social · 29/08/2025New piece in The Conversation by Rob McNeil and Peter Walsh from @migobs.bsky.social The most radical part of Reform’s deportation plans theconversation.com/the-most-rad...theconversation.comThe most radical part of Reform’s deportation plans‘Operation Restoring Justice’ would face legal, logistical and diplomatic hurdles. 142
Reposted by Prof Cathryn CostelloAlison Harvey @aliromah.bsky.social · 23/08/2025For the 1st time the UK will be the the subject of an @amnesty.org global urgent action. It says this is to "protect the right to protest in the UK, following the arrest, since July 2025, of over 700 people for peacefully protesting in support of Palestine Action" www.amnesty.org.uk/press-releas...amnesty.org.ukAmnesty International launches global campaign to protect UK protest rights after Palestine Action arrestsThe Urgent Action will involve letters addressed to the UK’s Chief Prosecutors, signed by activists and supporters all over the world. 01718
Reposted by Prof Cathryn CostelloAdil Haque @adhaque.bsky.social · 14/08/2025For my own take, see here: 8/8 t.co/MTYGJRxN2xt.cohttps://www.justsecurity.org/105629/amnesty-international-gaza-genocide-report/ 071
Reposted by Prof Cathryn CostelloAdil Haque @adhaque.bsky.social · 14/08/2025For more on this theme, see this excellent essay: 7/ t.co/FmsD1l3pkyt.cohttps://opiniojuris.org/2025/05/26/genocidal-intent-in-armed-conflict-unpacking-the-icjs-only-reasonable-inference-standard/ 161
Reposted by Prof Cathryn CostelloAdil Haque @adhaque.bsky.social · 14/08/2025Ezra Klein's interview with Philippe Sands is very good overall. But I want to reiterate that the ICJ has never said that the definition of genocide requires a "single intent." Nor does the ICJ's standard of proof preclude a finding of genocide in cases of plural intent. 1/🧵 24319
Reposted by Prof Cathryn CostelloDr Mary McAuliffe @drmarymcauliffe.bsky.social · 27/07/2025#lettheaidin 🇵🇸 310020
Reposted by Prof Cathryn CostelloSally Hayden @sallyhayd.bsky.social · 26/07/2025Two weeks tomorrow. bsky.app/profile/sall... 175
Reposted by Prof Cathryn CostelloCenter for International Environmental Law @ciel.org · 23/07/2025📢 Happening Today: 3PM CEST ⚖️ The @CIJ_ICJ delivers its Advisory Opinion on climate change and state responsibility. This could reshape global #ClimateJustice. Stay tuned for updates and analysis. 0117
Reposted by Prof Cathryn CostelloToby Murray @tobycmurray.bsky.social · 18/05/2025xAI’s Grok vividly highlights the potential for generative AI to turbo charge disinformation and concentrate influence power. Just at the time we learn LLMs may be more persuasive than humans bsky.app/profile/cscl... 16523
Reposted by Prof Cathryn CostelloThe Irish Marie Skłodowska-Curie Office @mariescurie-ire.bsky.social · 20/06/2025Very useful resources for anyone preparing applications for #MSCA calls 👇linkedin.com🔍 POLICY BRIEFS | RADIANCE🔍 POLICY BRIEFS With all major #MSCA calls now open, it's the perfect time to align your proposal with key European policy priorities. The policy briefs developed by MSCA-NET (now 'RADIANCE... 011
Reposted by Prof Cathryn CostelloThe Irish Marie Skłodowska-Curie Office @mariescurie-ire.bsky.social · 19/06/2025The #MSCA and Citizens call is now open! Check out these tips to prepare your application 👇marie-sklodowska-curie-actions.ec.europa.euMSCA & Citizens call: 6 steps to prepare your applicationGet started with this funding scheme and learn how to prepare a successful proposal. 021
Reposted by Prof Cathryn CostelloUNSW Kaldor Centre for International Refugee Law @kaldorcentre.bsky.social · 19/06/2025Does the Australian government have a duty to repatriate citizens and permanent residents stuck in Iran and Israel? Our own @profjmcadam.bsky.social, Dr Thomas Mulder & @reginajefferies.bsky.social explain what international law says ... theconversation.com/australian-c...theconversation.comAustralian citizens in Iran and Israel are desperate to leave. Is the government required to help?While the Australian government has frequently helped its citizens flee crises overseas, it is not legally obligated to do so. And repatriating citizens is complex. 054
Reposted by Prof Cathryn CostelloBranko Milanovic @brankomilan.bsky.social · 18/06/2025crucial importance of economic growth support for globalization: free movement of factors of production, goods and services moderate inequality economic/technological control of climate change no wars of aggression. www.ft.com/content/5340... 0102
Reposted by Prof Cathryn CostelloDonncha O’Connell @donnchalaw.bsky.social · 14/06/2025Appointments to the Irish Human Rights and Equality Commission (IHREC): publicjobs.ie/en/?option=c...publicjobs.ieJob DetailsPublicjobs.ie | Ireland's Premier Public Sector Recruitment Website 023
Reposted by Prof Cathryn CostelloSummer School on the International Criminal Court @iccsummerschool.bsky.social · 10/06/2025Today we discuss the ICC's subject-matter jurisdiction over aggression, crimes against humanity & war crimes. Followed by the keynote lecture of President Silvia Fernández de Gurmendi: "The promotion of human rights through accountability for the gravest crimes" @uniofgalway.bsky.social 032
Reposted by Prof Cathryn CostelloRahul Rao @rahulraothariel.bsky.social · 07/06/2025Oxford friends: I'm giving 2 book talks in the-town-where-Rhodes-has-not-fallen on Monday, June 9, 2–4 pm, St Antony's College (in person) www.africanstudies.ox.ac.uk/event/the-ps... and later in the month, courtesy Rhodes House, on June 24 (online) www.rhodeshouse.ox.ac.uk/programmes-e... 033
Reposted by Prof Cathryn CostelloBritish Institute of International and Comparative Law (BIICL) @biicl.bsky.social · 06/06/2025Short Course: AI Governance Ideal for legal practitioners, students, academics and all those directing policy around AI implementation who need to critically assess legal, regulatory and policy developments related to #AI. 📅 Starts 8 Oct Find out more buff.ly/Mqcycfd #AI #Training 021
Reposted by Prof Cathryn CostelloChris Bertram @crookedfootball.bsky.social · 02/06/2025Labour's immigration white paper is an incoherent self-defeating mess argues @colinyeo.bsky.socialwewantedworkers.substack.comSettlement and citizenship in Labour's white paperThe proposals will make it harder, not easier, for migrants to integrate, with negative consequences for productivity, growth and the public purse 098
Reposted by Prof Cathryn CostelloJakub Jaraczewski @jakubjaraczewski.bsky.social · 31/05/2025🇩🇪⚖️💼Do you want to work with us? We're looking for a programme coordinator with a strong background in human rights/EU law to lead our work on several projects, including our on the Charter of Fundamental Rights and its use in strategic litigation. You'll need an Anmeldung in Berlin, tho. Link below! 21619
Reposted by Prof Cathryn CostelloSteve Peers @stevepeers.bsky.social · 30/05/2025Italian court of cassation asks CJEU about detention of asylum-seeker and irregular migrant under Italy/Albania deal - asks CJEU to fast-track case but could still complicate application of the deal for awhile - ilmanifesto.it/la-cassazion...ilmanifesto.itLa Cassazione affonda il progetto Albania | il manifestoImmigrazione (Italia) La Cassazione dubita che il Cpr di Gjader sia compatibile con la direttiva rimpatri e con la direttiva accoglienza. Per questo ieri ha rinviato due cause alla Corte di giustizia ... 067
Reposted by Prof Cathryn CostelloOlúfẹ́mi O. Táíwò @olufemiotaiwo.bsky.social · 28/05/2025Rest in peace Ngũgĩ wa Thiong’o www.theguardian.com/books/2025/m...theguardian.comNgũgĩ wa Thiong’o, giant of African literature, dies aged 87Kenyan writer’s death announced by his daughter, who wrote: ‘He lived a full life, fought a good fight’ 8764306
Reposted by Prof Cathryn CostelloSteve Peers @stevepeers.bsky.social · 28/05/2025EU asylum law Temporary protection for those fleeing the invasion of Ukraine on the agenda for Member States' ministers June 13th - another extension and a recommendation on phasing it out 1153
Reposted by Prof Cathryn CostelloHolly Cullen @hollycullenfreo.bsky.social · 28/05/2025🚨 Important database of cases where lawyers were found to have used AI-hallucinated materials. Covers multiple jurisdictions, mostly anglophone systems.🚨 077
Reposted by Prof Cathryn CostelloAndrew Forde @drandrewforde.bsky.social · 27/05/2025🚨IDF firing 'warning shots' near diplomats is a violation of the Vienna Convention on diplomatic relations and sets an unacceptable precedent in international relations. My new piece in @theconversation.com theconversation.com/idf-firing-w...theconversation.comIDF firing ‘warning shots’ near diplomats sets an unacceptable precedent in international relationsIntimidation of diplomats is unacceptable and threatens the basis of international relations. 034
Reposted by Prof Cathryn CostelloCatherine Briddick @catbriddick.bsky.social · 27/05/2025'All States, including the UK, are legally obliged to take all reasonable steps within their power to prevent and punish genocide; to ensure respect for international humanitarian law... The UK’s actions to date have failed to meet those standards.' lawyersletter.uklawyersletter.ukUK Judges’ and Lawyers’ Open Letter Concerning the Occupied Palestinian Territory - May 2025 - UK lawyers’ open letter concerning GazaDownload the full letter and Legal Memorandum | View signatories London26 May 2025 We are lawyers, legal academics and former judges who are UK-based or qualified. We write owing to our deep concern ... 1156