Last week’s judgment in Mohammed v. Secretary of State for Defence is rich in analyses and observations concerning detention in non-international armed conflicts (NIACs). One of the key issues assessed concerns the power to detain in NIACs under IHL.
The Secretary of State’s position on this point commenced with a challenge to traditional classifications of armed conflict, contrasting purely internal conflicts with armed conflicts between two States (para 168). It was contended that the legal position concerning the authority to detain in a NIAC now reflects a more complex factual position than that captured under traditional classifications. A third classification must now be recognized: ‘internationalised’ NIACs. This echoes the ICRC’s Opinion Paper on internment, which speaks of ‘NIACs with an extraterritorial element’, in which “the armed forces of one or more State, or of an international or regional organization, fight alongside the armed forces of a host State, in its territory, against one or more organized non-State armed groups” (page 7).
To paraphrase, ‘if it looks and feels like an international armed conflict, let us apply IHL rules on international armed conflicts by analogy’. This is a dangerous approach that the Court of Appeal carefully avoided, instead focusing on its proposed implications.