Hayes v Willoughby [2013] UKSC 17; [2013] WLR (D) 110
Where a person whose conduct would amount to harrassment of another within section 1(1) of the Protection from Harassment Act 1997 sought to rely on the defence under section 1(3)(a) of the Act of having acted for the purpose of preventing or detecting crime, he had to show that he had thought rationally about the material suggesting the possibility of criminality and had formed the view that the conduct said to constitute harassment was appropriate for the purpose of preventing or detecting it.
WLR Daily, 20th March 2013
Source: www.iclr.co.uk
