United Nations Standard Minimum Rules for the Treatment of Prisoners (the Nelson Mandela Rules) 2015, para. 1
Notwithstanding the initiation of an internal investigation, the prison director shall report, without delay, any custodial death, disappearance or serious injury to a judicial or other competent authority that is independent of the prison administration and mandated to conduct prompt, impartial and effective investigations into the circumstances and causes of such cases. The prison administration shall fully cooperate with that authority and ensure that all evidence is preserved.
Negotiated soft law
United Nations General Assembly
Means of adoption
Governance & Rule of Law
UNGA resolution, United Nations Standard Minimum Rules for the Treatment of Prisoners (the Nelson Mandela Rules) (2015), A/RES/70/175, Rule 71, 1.