A group of NGOs, academics and politicians, including Business & Human Rights Resource Centre, have written an open letter to prosecutors in Luxembourg calling on them to abandon plans to prosecute Antoine Deltour, the whistleblower who leaked documents that exposed tax rulings secured by PricewaterhouseCoopers in Luxembourg that allow aggressive tax avoidance by business. Deltour faces criminal prosecutions for theft, violating professional secrecy, exposing trade secrets, and illegally accessing a database.