Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Johannes A. Soons

Publications

Firearm examination: Examiner judgments and computer-based comparisons

Author(s)
Xiaoyu A. Zheng, Erwin J. Mattijssen, Johannes A. Soons, Charles Berger, Cilia Witteman, Reinoud Stoel
Forensic firearm examination provides the court of law with information about the source of fired cartridge cases. We assessed the validity of source decisions

NIST Ballistics Toolmark Research Database

Author(s)
Xiaoyu A. Zheng, Johannes A. Soons, Robert M. Thompson, Sushama P. Singh, Cerasela Constantin
In 2009, a report by the National Academies called into question, amongst other issues, the objectivity of visual toolmark identification by firearms examiners

Pilot Study on Deformed Bullet Correlation

Author(s)
Zhe Chen, Jun-Feng Song, Johannes A. Soons, Robert M. Thompson, Xuezeng Zhao
Most studies on bullet identification address test fire bullet that have near pristine striation marks on the land engraved areas (LEAs). However, in case work
Created May 7, 2019