On behalf of the organizing committee of the IET's 4th International Conference on Imaging for Crime Detection and Prevention. This event that takes place every two years brings together researchers, practitioners, end users, law enforcement to discuss the state of the art in technologies and usage. Accepted papers will be indexed in INSPEC/IEEE-Xplore and extended versions of the best paper will be invited for consideration for publication in the IET Computer Vision research journal. There will be an interesting range of invited keynote and industrial speakers. Deadline for full papers: 18th July 2011 Conference date: 3rd - 4th November 2011, London, UK Please have a look at the call for papers: http://www.icdp-conf.org/ICDP11CFP.pdf Conference web site: http://www.icdp-conf.org