Until 1984, Professor A. J. Sammes was a serving British Army Officer with the rank of Colonel, late of the Royal Corps of Signals. His present appointment is Professor of Computing Science, in the Faculty of Military Science, Technology and Management at the Defense Academy, Cranfield University, Shrivenham. His formal qualifications include a Bachelor of Science in Electrical Engineering, a Master of Philosophy in Computer Science and a Doctor of Philosophy in Computer Science, all degrees having been awarded by the University of London. He is also a Fellow of the British Computer Society and a Chartered Engineer. His department has been more or less solely responsible for training senior police officers in the UK in the art of forensic computing. His testimony as an expert witness has been called in countless cases, of some of great national importance.