Enrollment Deadline: 15 March 2026

Participants will compare several pairs of individual prints to determine if each pair originates from a single source, then compare several questioned tenprint cards to a pool of tenprint standards to determine if any of the questioned card share a source with any of the standards.

Sample Description: A digitally downloadable file containing .tif and .jpg sample sets of inked and live scanned prints at 1000 dpi resolution. Due to large file sizes, advanced photo image software may be required to open and view these images. With tests consisting of digital test materials, participants are not limited to only on-screen comparisons and may use any other method; however, due to differences in printing technology, CTS cannot guarantee the quality of images printed from digital media.

Digital test materials are made available in June.

Additional Information: Digitally downloadable test materials, as well as response forms for all test formats, are only available on www.cts-portal.com. The information necessary to access the test materials will be provided via email to the primary contact on file on the day of the test release.

This test is included on CTS' Scope of Accreditation to ISO/IEC 17043.