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The United Nations Security Council (UNSC) is, in many ways, a unique institution. It exercises legislative, judicial and executive powers; operates with few legally binding checks and balances and has even been described as being �unbound by law�. The Council has broad powers to maintain international peace and security, most notably under Chapter VII of the UN Charter, and its decisions are binding on UN members. At the same time, some of the Council�s actions have been labelled as ultra vires and the lack of a binding, legal oversight mechanism to reign in Council action has been decried. Accepting that there is a difficulty in imposing legally binding checks and balances on the UNSC, this article argues that approaching the Council�s Chapter VII powers as a form of emergency powers may help to illuminate the role that non-legal restraints can play in curbing its power. In particular, this article uses Oren Gross� �extra-legal measures model� to conceptualize the Chapter VII regime and restraints upon it. It shows how the extra-legal measures model offers a descriptive account of UNSC action under Chapter VII and then builds on the gaps in the application of the model to the Council to highlight areas for the development of better restraints, in particular, in areas that may be missed by a traditional legal analysis.
