Participants compare questioned latent prints to known inked prints to establish identification. Test items are completely randomized and available for purchase on-demand. This test is presented in an online only form.

This is a 2021 LOP test that is part of the CTS Late Order Purchase (LOP) plan. Credit card purchase only. Participants compare questioned imprints to known source exemplars to establish identification. Available in 2 test formats (photo and digital download). Samples release in July.

Participants assess their ability to compare collected fingerprints and determine whether or not they originate from a single source. Samples are made available in May. This test is presented in an online only form.

Participants compare questioned latent prints to known inked prints to establish identification. Available in 2 test formats (photo or digital download). Samples ship in January.

Participants process several pieces of porous and nonporous evidence to develop latent prints. Samples ship in June.

Participants compare questioned imprints to known source exemplars to establish identification. Available in 2 test formats (photo and digital download). Samples ship in April.