JSM 2012 Home

JSM 2012 Online Program

The views expressed here are those of the individual authors and not necessarily those of the JSM sponsors, their officers, or their staff.

Online Program Home
My Program

Abstract Details

Activity Number: 419
Type: Contributed
Date/Time: Tuesday, July 31, 2012 : 2:00 PM to 3:50 PM
Sponsor: Section on Physical and Engineering Sciences
Abstract - #304724
Title: Significance of Angle in the Statistical Comparison of Forensic Toolmarks
Author(s): Amy Hoeksema*+
Companies:
Address: 3544 Tripp Street, Ames, IA, 50014-7568, United States
Keywords: Forensics ; Angle ; Nonlinear regression
Abstract:

In forensics, fingerprints can be used to uniquely identify suspects in a crime. Similarly, a toolmark left at a crime scene can be used to identify the tool that was used. However, the current practice of identifying matching toolmarks involves visual inspection of marks which can be a very subjective process. Although research has been done to quantify the match process and make it more objective, there are still many unknown aspects of a toolmark left at a crime scene that make a quantitative match process difficult. One such aspect is the angle at which a toolmark is made. Work has been done that shows the angle of a mark is essential to the toolmark characteristics. Our analysis works to incorporate the angle of a toolmark into the computation of a similarity measure between two toolmarks. We model the cases in which the angles for all toolmarks are known and when one of the marks was made at an unknown angle.


The address information is for the authors that have a + after their name.
Authors who are presenting talks have a * after their name.

Back to the full JSM 2012 program




2012 JSM Online Program Home

For information, contact jsm@amstat.org or phone (888) 231-3473.

If you have questions about the Continuing Education program, please contact the Education Department.