For every expert who advocates the use of intercept evidence there is another who fiercely warns against it, particularly those who are experts in law [1] . Despite the use of wiretapping in the USA, many people advocate against intercept evidence by pointing out its past failures [2] and questionable authorisation [3] [4] . In the UK, MI5, MI6 and GCHQ have voiced concerns that wire-tapping would expose the methods used by intelligence services [5] . This is not purely a debate about whether wire-tapping works, but whether it is in line with the legal principles held by those countries and states who currently do not allow it to be used in court. Just because it could be used does not make it legitimate – in fact, there is often heavy criticism against wiretapping within the legal profession itself [6] [7] .  [1]  , accessed 30/08/11  [2]  , accessed 30/08/11  [3]  , accessed 30/08/11  [4]  , accessed 30/08/11  [5]  , accessed 30/08/11  [6]  , accessed 30/08/11  [7]  , accessed 30/08/11