However section 59 of the Energy Act 2004 allows CNC officers to act outside their natural jurisdiction in mutual aid situations under agreements between the Chief Officer of the CNC and the Chief Officer of a local police force. In 2005 officers of the CNC were part of the police operation involving nearly all police forces of the United Kingdom in connection with the G8 conference near Gleneagles, Scotland. Officers were seconded to Cumbria Constabulary as support during the floods of 2009. On 2 June 2010 27 CNC officers were deployed to assist Cumbria Constabulary in the manhunt for the gunman Derrick Bird. Along his route across West Cumbria, Bird killed 12 people and injured 25. Officers have also been deployed to the 2012 London Olympics and twenty-eight officers to a 2014 NATO conference in Wales. For a period of three months during 2015, ten CNC officers were seconded to the British Transport Police's Counter Terrorism Support Unit in London. This detachment helped to cover the shortfall in firearms officer numbers in London in the wake of recent European terror attacks on major cities. On 27 March 2016, the "Daily Telegraph", post-Brussels terrorist attacks, stated: 'The Home Secretary has announced there will be a "surge" of more than 1,000 new armed police officers deployed across the country in the wake of the terrorist attacks in Brussels. Ms May has also changed the law to enable the 1,000 armed police officers guarding Britain’s nuclear power stations to be redistributed in the event of multiple terror attacks.' A press release from the CNC and Home Office details the changes made to enable a greater mutual aid role (dated 7 March 2016). It cites the CNC's Deputy Chief Constable Simon Chesterman: 'The signing of this collaboration agreement allows chief constables to formally request and receive CNC AFOs to work under his or her jurisdiction for the time period they require. Currently, CNC officers only have policing powers in a five-kilometre radius of a nuclear site, as laid out in the Energy Act 2004, and this agreement removes that restriction should officers be needed to provide support at any force across the country if circumstances require it.' Following the Manchester Arena bombing on 22 May 2017 the force deployed in excess of 450 AFOs across the UK. This deployment occurred following the UK Threat Level being increased from Severe to Critical. Operation Temperer was activated and the military was deployed to backfill CNC officers at Nuclear Licensed Sites. CNC officers were deployed to support Northumbria Police, Greater Manchester Police, Merseyside Police, South Yorkshire Police, West Yorkshire Police, West Midlands Police and South Wales Police.