Paragraph 4.1 Article 4 Use of Force

Police officers, in carrying out their duties, shall as far as possible apply non-violent methods before resorting to any use of force. Any use of force shall be the minimum appropriate in the circumstances and shall reflect a graduated and flexible response to the threat. Police officers may use force only if other means remain ineffective or have no realistic chance of achieving the intended result.

(Sourced from: Article 4 United Nations Basic Principles on the Use of Force and Firearms by Law Enforcement Officials.)