4.4. A police officer shall discharge a firearm only where the officer honestly believes it is absolutely necessary to do so in order to save life or prevent serious injury, unless the discharge is for training purposes or the destruction of animals.
(Sourced from: European Court of Human Rights: Andronicou and Constantinou –v- Cyprus (1997) 25 EHRR; Article 9 United Nations Basic Principles on the Use of Force and Firearms by Law Enforcement Officials.)