Criminalisation creates more problems than it solves  A law that punishes users of extremist websites would create a whole host of practical problems. Most obviously how are the authorities to monitor who are visiting extremist websites without a large expansion of a surveillance society that already exists? [1] There would need to be large scale monitoring of what websites everyone visits or at least the ability for governments to get records from internet service providers, potentially a grave breach of individual’s right to privacy.  Laws are only effective if those who are subject to the law have some idea of what that law means and what they should not be doing. [2] A good law should define what exactly the criminality is and this law would almost certainly have many problems with definitions. What makes someone a regular or habitual visitor? A few visits too many sites, hundreds of visits, regular visits once a week? There will also be challenges working out which websites should be considered extremist and even then how is a user to know that a website they visit is considered an ‘extremist’ website? Any type of warning would be counterproductive as no one would ever be caught and extremists would keep changing websites. This would create a climate of fear on the internet due to ambiguity about what is acceptable and what might result in being thrown into prison. While itself a terrible infringement of freedom of expression at least blocking access to some websites has the advantage of showing what the state considers unacceptable.  [1] Ball, Kirstie et al., ‘A Report on the Surveillance Society’, Surveillance Studies Network, September 2006, p.1.  [2] Robinson, Paul, ‘The Role of Deterrence in the Formulation of Criminal Law Rules: At Its Worst When Doing Its Best’, Scholarship at Penn Law, Paper 51, p.31.