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 U.K . 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
Manchester Arena bombing
Manchester Arena bombing
Civil Nuclear Constabulary