UN OHCHR Office of the United Nations High Commissioner for Human Rights [to 2 May 2015]
http://www.ohchr.org/EN/NewsEvents/Pages/media.aspx?IsMediaPage=true

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USA: Transparency and accountability essential in use of drones – UN human rights experts
4/29/2015
Press Releases
Special Rapporteur on the promotion and protection of human rights and fundamental freedoms while countering terrorism
Sp. Rapporteur on summary executions
Sp. Rapporteur on independence of judges and lawyers
Sp. Rapporteur on torture
GENEVA (29 April 2015) – A group of UN independent human rights experts* today welcomed the US Government’s announcement of a review into two counter-terrorism operations involving the use of drones, but they stressed the need to ensure transparency and accountability.
The US Government acknowledged the accidental killing of four individuals in counter-terrorism operations conducted in January in the border regions of Afghanistan and Pakistan involving the use of drones, following declassification of information related to the operations and disclosure to the public.
“We welcome President Obama’s apology to the families. All innocent victims of drone attacks deserve such an apology, regardless of their nationality,” the experts stated…

UN Working Group adopts “Basic Principles and Guidelines on Remedies and Procedures on the Right of Anyone Deprived of His or Her Liberty by Arrest or Detention to Bring Proceedings Before Court”.
4/29/2015
Press Releases