The BackTrack program for bloodstain pattern analysis is an excellent forensic tool that allows bloodstain pattern analysts to simply and quickly analyze patterns of projected bloodstains at bloodletting crime scenes. Although the program has been in use for a number of years, few validation studies have been carried out. In this work, 18 bloodstain targets were created, and then analyzed independently by a number of trained bloodstain pattern analysts (N = 8-11) using the BackTrack programs. The results indicate high precision, demonstrating that a number of investigators, analyzing the same scene, will arrive at approximately the same result with the program. The accuracy of the results is also very good, in keeping with previous validation studies.
Further Validation of the BackTrack Computer Program for Bloodstain Pattern Analysis – Precision and Accuracy
Carter, A.L.; Illes, M.; Maloney, K.; Yamashita, A.B.; Allen, B.; Brown, B.; Davidson, L.; Ellis, G.; Gallant, J.; Gradkowski, A.; Hignell, J.; Jory, S.; Laturnus, P.L.; Moore, C.C.; Pembroke, R.; Richard, A.; Spenard, R.; Stewart, C. Further Validation of the BackTrack™ Computer Program for Bloodstain Pattern Analysis - Precision and Accuracy. IABPA News, 2005, 21 (3), 15-22.