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Collaborative Testing Services, Inc.

P.O. Box 650820, Sterling, VA, USA 20165-0820  1-571-434-1925
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Firearms & Toolmarks

Firearm examination includes the comparison of bullets and cartridge cases found at crime scenes to suspect firearms, as well as distance and angle determinations and serial number restorations. Toolmark examiners can determine if a toolmark left at a scene was produced by a particular suspect tool. CTS offers the greatest variety of proficiency tests to meet the diverse needs of the firearms and toolmarks community and works with that community to create casework-like samples that challenge examiners and assess their performance.

Firearms & Toolmarks Shipping Schedule

5250  Serial Number Restoration ships January
5301/05  GSR Distance Determination ships March
528  Toolmarks Examination  ships April
526  Firearms Examination ships May
5251  Serial Number Restoration ships July
5620  Shooting Reconstruction: Angle Determ. ships August
5902  3D Virtual Microscopy FA Exam Research (offered in 2018 only) ships August
529  Toolmarks Examination ships September
5306  Shotgun Distance Determination ships October
527  Firearms Examination ships October

If there are any tests with closed enrollment periods, they are shown here, along with future availability. Contact CTS if you have any questions.

5250 Serial Number Restoration

Enrollment in this 2019 test offering closed on Nov 1, 2018.
This test is offered annually.
2020 test will begin accepting enrollments in July 2019.
Available again on: 2019-07-15

526 Firearms Examination

Enrollment in this 2019 test offering closed on Nov 1, 2018.
This test is offered annually.
2020 test will begin accepting enrollments in July 2019.
Available again on: 2019-07-15

528 Toolmarks Examination

Enrollment in this 2019 test offering closed on Nov 1, 2018.
This test is offered annually.
2020 test will begin accepting enrollments in July 2019.
Available again on: 2019-07-15

5301/05 GSR Distance Determination

Enrollment in this 2019 test offering closed on Nov 1, 2018.
This test is offered annually.
2020 test will begin accepting enrollments in July 2019.
Available again on: 2019-07-15

Portal Links

Manufacturer's Information reports for all Firearms & Toolmarks tests can be found on the CTS Customer Portal.