<article>Brussels has a problem: one of its former border chiefs is now sitting in the European Parliament under investigation for crimes against humanity.Fabrice Leggeri, who ran the EU's border agency Frontex from 2015 to 2022 before resigning under pressure, is now under formal investigation by French authorities for complicity in crimes against humanity. The probe centers on his oversight of operations in the Mediterranean Sea that allegedly resulted in the illegal pushback of migrants and deaths at sea.According to Le Monde, which first reported the investigation, French magistrates are examining whether Leggeri knowingly facilitated Greek Coast Guard operations that violated international maritime law. The investigation focuses on incidents between 2020 and 2022, when multiple investigations by journalists and NGOs documented systematic pushback operations - essentially forcing migrant boats back toward Turkey rather than conducting rescues as required under maritime law.Here's the institutional accountability story Brussels didn't plan for: Leggeri left Frontex in April 2022 after the European Parliament demanded his resignation following revelations that the agency had been complicit in pushbacks. The EU's anti-fraud office OLAF had found evidence of misconduct, including harassment allegations and mismanagement. Rather than face the consequences within EU institutions, Leggeri pivoted to politics.By 2024, he was running for the European Parliament on the ticket of Marine Le Pen's National Rally - the far-right party that campaigns on even stricter immigration controls. He won. Now he sits in the very chamber that pushed him out of Frontex, this time as an elected MEP with parliamentary immunity.The investigation alleges that under Leggeri's leadership, Frontex not only failed to prevent illegal pushbacks by Greek authorities but actively coordinated with operations that resulted in deaths. Investigative reports documented cases where boats in distress were left without assistance, with some migrants drowning after being forced back toward Turkish waters. The European Parliament's own investigations found that Frontex had systematically failed to report fundamental rights violations, as required by its mandate.What makes this case institutionally significant is that it tests whether EU officials can be held accountable for actions taken while running EU agencies. Frontex operates in a gray area - it coordinates national border operations but doesn't directly control them. Leggeri's defense has consistently been that Frontex merely assisted member states, and that operational decisions were made by national authorities, particularly .But the French investigation suggests prosecutors believe Leggeri's role went beyond passive coordination. If charges are brought, it would establish a precedent: EU agency heads can face criminal accountability for operations conducted under their watch, even when those operations are technically carried out by member states.The timing is particularly awkward for Brussels. The EU has spent the past two years trying to reform Frontex after the scandals that forced Leggeri out. The agency now has a fundamental rights officer, expanded oversight mechanisms, and a larger budget - it's set to grow to 10,000 standing corps members by 2027. The Commission has repeatedly insisted that the new Frontex is different, reformed, accountable.Yet the former director who presided over the alleged abuses is now a sitting MEP, with parliamentary immunity that could complicate prosecution. The delegation has said it will not waive Leggeri's immunity unless French authorities formally request it - a process that could take months and requires a vote by the full Parliament.For the far-right, Leggeri has become a symbol: a tough border enforcement official persecuted by human rights activists and Brussels bureaucrats. For human rights groups, he represents everything wrong with EU migration policy - an architecture of deterrence that prioritizes keeping people out over saving lives at sea.The investigation also raises uncomfortable questions about the migration system more broadly. If Leggeri is found complicit in crimes against humanity for coordinating operations, what does that say about the member states that actually conducted those operations? has consistently denied conducting illegal pushbacks, despite overwhelming evidence from journalists, NGOs, and even Frontex's own incident reports.Brussels decides more than you think. In this case, what Brussels decided was to build a border enforcement system with unclear accountability, then act surprised when that system allegedly resulted in deaths at sea. Now a French court will decide whether the man who ran that system is criminally responsible.A spokesperson for the European Parliament declined to comment on the ongoing investigation. Leggeri's office did not respond to requests for comment. Frontex said in a statement that it has implemented comprehensive reforms and is committed to fundamental rights compliance.</article>