In this letter, REDRESS and five other human rights organisations urge Thorbjørn Jagland, Secretary General of the Council of Europe, to extend the Article 52 inquiry into member states’ involvement in the CIA programme of secret rendition, detention and interrogation. States were asked to provide further information to the inquiry by the end of September 2015 and the organisations are concerned that this request may now lead to a sudden conclusion of the inquiry despite a lack of accountability for governments’ actions. In the letter, they also request the Secretary General to accept information from non-state sources as well as make public the outcomes of the inquiry on member states’ progress at conducting effective investigations into this matter. The letter is also signed by Amnesty International, Human Rights Watch, Open Society Justice Initiative, the International Commission of Jurists and Human Rights in Practice.