 The Intelligence Services Act 1994 grants GCHQ the power 'to monitor or interfere with electromagnetic, acoustic and other emissions and any equipment producing such emissions, and to obtain and provide information derived from or related to such emissions or equipment'.This includes BlackBerry Messenger (BBM) and audio messages.On 1 June 2007, GCHQ Bude was designated as a protected site for the purposes of Section 128 of the Serious Organised Crime and Police Act 2005.