The subsequent activities of the group have been controversial, following the revelation in December 2008 that Christchurch man Rob Gilchrist had been spying for SIG officers on individuals and organisations including Greenpeace, Iraq war protestors, student associations, animal rights and climate change campaigners. News that SIG existed first emerged in public media in December 2008, when it was reported that an exposed SIG spy had spied on political parties and organisations involved in peaceful, environmental, animal and human rights activities. Subsequent articles reported that SIG had been receiving information on a variety of organisations including unions, contrary to a prior claim that only individuals were targeted. Officers involved in the group include Detective Peter Gilroy and Detective Senior Sergeant John Sjoberg, both named in connection with the Gilchrist incident. The Sunday Star Times reported, at the time the Gilchrist scandal broke, that Detective Peter Gilroy 'moved to New Zealand in 1973 from the London Metropolitan Police and was a member of the Armed Offenders Squad and then Special Tactics Group from 1975–1999, when he appears to have moved into police intelligence work'. Within days of details covering SIG activities being released into mainstream media in December 2008, New Zealanders began calling for a commission of enquiry into the group. SIG has been criticised for spying on peaceful protest and community organisations, wasting resources, and using "Stasi tactics and covert political operations that undermine democracy". The group has also been criticised for "dangling money, public money, in front of protest group members, such as Gilchrist, in an attempt to them into spies", and for having "gone well outside its mandate". On 22 December 2008 the Maritime Union of New Zealand announced it had received legal advice and would seek further action. The union wants to know what information is held by police about itself. Others who have already received SIG information about themselves include pacifist Harmeet Singh Sooden, whose SIG files were released during a Scoop investigation in December 2008. According to the New Zealand Herald, Police Commissioner Howard Broad commented that "he did not believe an inquiry is needed into allegations police have been spying on peaceful protest groups and defended the use of informants, saying they were used for a range of inquiries including murder." Broad stated that "police were not targeting peaceful protesters but if they were alerted to the possibility of violent action or vandalism, they acted." He also said that "SIG was intended to assess threats from individuals who may or may not be members of groups."
