R.B.Ross defines Predatory Gang-Stalking as: "A criminal phenomena referring to a group of loosely affiliated people who, in an organised and systematic manner, relentlessly invade an individuals life on a continuous basis, to an extreme degree, as part of their lifestyle".

The surveillance state is a government's surveillance of large numbers of citizens. The growth of state surveillance has led to concerns about the erosion of privacy and civil liberties. The United Kingdom is seen as a pioneer of mass surveillance. At the end of 2006 it was described by the Surveillance Studies Network as being 'the most surveilled country' among the industrialized Western states.

The Targeted Individuals website provides detailed information on the parallel judicial system that targets activists, whistleblowers and unwitting members of the public. It also includes insights on the covert policies, methods, tactics and techniques of Government and non-government organisations.