Participants compare questioned latent prints to known inked prints to establish identification. Test items are completely randomized producing unique sample sets and available for purchase on-demand. This test is only available online.

Participants evaluate their ability to perform facial comparisons of digital images. This test is only available online. Test materials are made available in July.

This is a 2024 Latent Prints test that is part of the CTS Late Order Purchase (LOP) plan. Credit card purchase only. Participants compare questioned latent prints to known inked prints to establish identification. Test material is available in two formats (photo or digital download). Samples ship in August.

This is a 2024 LOP test that is part of the CTS Late Order Purchase (LOP) plan. Credit card purchase only. Participants compare questioned handwriting and signatures to known source handwriting to establish identification. Test material is available in two test formats (photo or digital download). Samples ship in September.

This is a 2024 test that is part of the CTS Late Order Purchase (LOP) plan. Credit card purchase only. Participants receive a questioned shot pattern and known distance images to determine the shooting distance. Samples ship in October.

This is a 2024 test that is part of the CTS Late Order Purchase (LOP) plan. Credit card purchase only. Participants evaluate their ability to examine audio evidence. This test is only available online. Test materials are made available in September.

This is a 2024 test that is part of the CTS Late Order Purchase (LOP) plan. Credit card purchase only. Participants screen samples for body fluid(s) and analyze samples for DNA. Known bloodstain standards are provided on FTA Micro Cards. Samples ship third week in October. (Screening/STR/YSTR)