Forensics Program
 

 

Firearms & Toolmarks

Constant evolution to meet the changing needs of laboratories while maintaining excellent value is a hallmark of the CTS program. For the Firearms Examination, diverse types of bullets and cartridges fired from a wide range of weapons (revolvers, semi-automatics, rifles, etc.) are offered - all resulting in a highly demanding test. For the Toolmarks Examination, a variety of tools and substrates are used providing a diverse, challenging test scenario in each offering. Growing in popularity, the Serial Number Restoration test offers a piece of bar stock with an obliterated serial number for the restoration process. The newest test offering -- Gunshot Residue Distance Determination -- provides participants with an actual evidence article of clothing to be tested using chemical processing.



 

 


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View Sample Individual Reports

5250 Serial Number Restoration (2017)

Participants analyze a blank bar stock in an attempt to restore a serial number.

 

5251 Serial Number Restoration (2017)

Participants analyze a blank bar stock in an attempt to restore a serial number.

 

526 Firearms Examination (2017)

Participants examine and compare the firearm evidence provided (expended bullets or expended cartridge cases) to determine if the suspect weapon fired the questioned evidence.

 

527 Firearms Examination (2017)

Participants examine and compare the firearm evidence provided (expended bullets or expended cartridge cases) to determine if the suspect weapon fired the questioned evidence.

 

528 Toolmarks Examination (2017)

Participants examine the evidence samples provided to determine if the suspect tool was responsible for the marks produced on the evidence.

 

529 Toolmarks Examination (2017)

Participants examine the evidence samples provided to determine if the suspect tool was responsible for the marks produced on the evidence.

 

530_ GSR Distance Determination (2017)

Participants receive an evidence item and are asked to determine the shooting distance.

 

5620 Shooting Reconstruction: Angle Determination (Demonstration Test) (2017)

CLOSED! Participants determine the horizontal and vertical angles and report their methodologies, conclusions and additional comments.

 
 
 
 
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Collaborative Testing Services, Inc.
P.O. Box 650820, Sterling, Virginia, USA 20165-0820
Phone: 1-571-434-1925