Chatham House and International Committee of the Red Cross, London, 22–23 September 2008An informal Expert Meeting on Procedural Safeguards for Security Detention in Non-International Armed Conflict was convened by the International Committee of the Red Cross (ICRC) and Chatham House, bringing together experts with a military, academic, government and NGO background. The discussion was focused on outstanding legal and operational issues linked to internment practice. The ICRC's 2005 position paper on Procedural Principles and Safeguards for Internment/Administrative Detention and a list of practical questions prepared by the ICRC served as background documents for the discussion.The experts took part in their personal capacity. As the meeting was conducted under the Chatham House Rule the views reflected in this summary report are not attributed to individual persons or the institutions they represent.While inevitably touching on both criminal and administrative detention/internment in situations of international armed conflict, occupation, and situations of violence below the applicability threshold of international humanitarian law, the debate was focused on security detention in non-international armed conflict. The report therefore covers only that issue; expansions into wider areas of discussion will be mentioned only where directly relevant.