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FIVES brings together partners from law-enforcement, academia and industry to work together to enhance the state of the art for tools available to law enforcement in the area of child sexual abuse investigation. FIVES is a targeted project within the Safer Internet Program.


The objectives of the FIVES project are to develop novel investigative tools specifically tailored for investigations involving images and videos of child sexual abuse. The FIVES tool set will allow police and law-enforcement agencies to:

  • speed up the process of handling very large amounts of evidence material on seized computers, and separate previously known illegal material from new, potentially illegal, material by efficient file and file fragment matching.
  • efficiently evaluate large amounts of new material by employing perceptual optimization techniques. This aims to minimize the human effort needed when classifying new material.
  • improve the capability of linking new illegal images and video to previously known material by using object matching and image similarity techniques to allow details of crime scenes to be linked between different image sets or videos. This facilitates the widening of investigations with the aim of rescuing the victims of sexual abuse.


  • 1 Feb 2009 Project start
  • April 2009 End user survey
  • 1 Feb 2010 First prototype available
  • Fall 2010 End-user tests
  • 1 Feb 2011 End of project

Project information leaflet

A two-page leaflet describing FIVES is available here.