This test is still open for enrollment via credit card only. Please select credit card as the payment method during the checkout process if your order includes any Late Order Purchase (LOP) tests.

These tests involve the comparison of 8-12 latent prints with four sets of inked known/exemplar prints.

The latent prints may consist of any part of the hand, palms to tips. Samples are available in a choice of physically printed images or as a digitally downloadable file.

The images are the same for all formats, but are not the same as those used in Test 5161/5.

Test 5171 consists of physically printed images.

Response forms for Tests 5171 and 5175 are only available on www.cts-portal.com as well as the test samples for Test 5175. The information necessary to access the test materials will be provided via e-mail 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.

Test materials ship/are made available in August. All formats are released at the same time and contain the same images; reporting aspects of all formats are also combined.

LOP Enrollment deadline: 1 July 2025