When Russia’s full-scale invasion of Ukraine in February 2022 triggered a wave of war crimes allegations, Mark Ellis, Executive Director of the International Bar Association (IBA), found himself at the center of a legal storm. In an exclusive interview with World Today News, Ellis outlined how the IBA has mobilized its global network of lawyers to document atrocities, push for accountability through universal jurisdiction, and confront the limitations of international law in the face of state-sponsored violence. His work has placed him in direct dialogue with Ukrainian prosecutors, European courts, and even the International Criminal Court (ICC), where the stakes could not be higher.
The IBA’s response to Ukraine has been unprecedented in scale. Within months of the invasion, Ellis launched the IBA Human Rights Institute’s Ukraine Support Task Force, a coalition of over 1,200 legal professionals across 45 countries. Their mandate: to gather evidence of war crimes, assist Ukrainian authorities in prosecutions, and pressure governments to act. “We’re not just collecting evidence—we’re creating a legal ecosystem that can sustain prosecutions for decades,” Ellis said. The task force has already submitted affidavits to the ICC’s investigation into Russian aggression, including testimony from civilians who witnessed executions, forced deportations, and the deliberate targeting of critical infrastructure.
One of the task force’s most contentious battles has been over universal jurisdiction, a legal principle that allows national courts to prosecute crimes regardless of where they were committed or the nationality of the perpetrators. Ellis cited recent cases in Germany, France, and Spain, where judges have issued arrest warrants for Russian officials accused of war crimes—including the bombing of the Mariupol theater and the Bucha massacre. “These cases are setting a precedent,” he said. “For the first time, we’re seeing European courts treat Ukraine’s war crimes as their own moral and legal responsibility.” Yet the approach is not without risks. Russia has threatened retaliation against foreign judges and prosecutors, while some legal scholars warn that universal jurisdiction could be weaponized in future conflicts.
The challenges are compounded by the ICC’s limited reach. While the court has issued arrest warrants for Russian President Vladimir Putin and Children’s Rights Commissioner Maria Lvova-Belova over the deportation of Ukrainian children, Ellis acknowledged that the ICC’s mandate is constrained by political will. “The ICC can only act if a state refers a situation to it or if the Security Council authorizes an investigation,” he said. “With Russia’s veto power on the Security Council, we’re left with a fragmented system where some crimes go unpunished.” To bypass this, the IBA has partnered with Ukrainian prosecutors to build cases that can be tried in national courts under universal jurisdiction—a strategy that has already led to the first convictions of Russian soldiers in Germany.
Ellis also highlighted the emerging crisis in international legal cooperation. As Western governments impose sanctions on Russia, they have simultaneously restricted access to Russian officials for fear of diplomatic backlash. “We’re seeing a paradox where the very tools meant to hold Russia accountable—sanctions, asset freezes—are also blocking the flow of evidence,” he said. The IBA has documented cases where potential witnesses in Russia have been intimidated or disappeared, while Russian legal experts who could provide insights into military command structures have been cut off from international legal networks. “This is not just a legal problem; it’s a strategic one,” Ellis warned. “If You can’t gather evidence now, we may never be able to.”
The interview concluded with Ellis emphasizing the long-term nature of justice in Ukraine. While the ICC’s investigation continues and national courts move slowly, the IBA’s task force is already looking beyond the war’s immediate phase. “We’re not just fighting for prosecutions today—we’re laying the groundwork for a future where these crimes cannot be erased,” he said. The next critical step, he noted, is the establishment of a specialized international tribunal for Ukraine, a proposal currently under discussion at the UN but facing resistance from states wary of setting precedents for future conflicts. For now, the IBA’s work remains a patchwork of national efforts, each with its own legal and political constraints.
The interview took place against the backdrop of escalating tensions over evidence preservation. Ukrainian authorities have warned that as Russian forces retreat from certain regions, they are destroying documents, contaminating crime scenes, and coercing witnesses. Ellis confirmed that the IBA is working with forensic teams to secure digital and physical evidence before it can be altered or lost. “Time is not on our side,” he said. “The longer this drags on, the harder it becomes to hold anyone accountable.”
