Norway attacks: Police find Anders Breivik on file
25 July 2011 Last updated at 22:12 BST
It has emerged that the name of Anders Breivik, who has admitted the shooting and bomb attacks in Norway, was in security files four months ago.
Director of the Norwegian Police Security Service, Janne Kristiansen, said Mr Breivik's name had been highlighted over a cheque worth around £15 in March.
She said: "He's not on our list of people of interest, and we had no knowledge about him and so he had not been under surveillance.
"He was not on any lists of right wing extremists but after what has happened we have now looked into our archives, where we have an enormous amount of information."