Novel Distance Estimation for a Shotgun Discharge At Close Range

2019

Dr. Rachel Bolton-King

Nashville, TN

The purpose of this presentation is to evaluate a new method for estimating shotgun-related shooting distances at close range, typically <1 m (3 ft). The research proposition was that close firing distances can be estimated from measuring the size of the shot-defect created upon a clothes human simulation. This research demonstrates the potential for a simple, cheap and non-destructive new method to estimate shooting distance at close range (<1m) through the application of traditional photography, and analysis using open source software (Fiji/ImageJ). This method still requires further testing, but has the potential for application in estimating firing distance when shot have not sufficiently spread and/or to further corroborate gunshot residue patterns observed through visual or chemical analysis.

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