206. Investigation must be effective.

An investigation1 must be effective in the sense that it is capable of leading to a determination of whether the force used was or was not justified in the circumstances and to the identification and punishment of those responsible2: this is not an obligation of result, but of means3. The obligations under Article 2 cannot be satisfied merely by awarding damages4, and the investigation must be thorough and expedient5. The authorities must take the reasonable steps available to them to secure the evidence concerning the incident, including, inter alia, eye-witness testimony, forensic evidence and, where appropriate, an autopsy which