‘The Court of Appeal has ruled that the police have a positive duty under Article 3 ECHR to conduct investigations into alleged ill-treatment by private individuals. There is a sliding scale from deliberate torture by State officials to the consequences of negligence by non-State agents. The margin of appreciation enjoyed by the State in terms of complying with the Article 3 procedural duty widens at the bottom of the scale but narrows at the top.’
UK Human Rights Blog, 6th July 2015
Source: www.ukhumanrightsblog.com