This is a 2021 LOP test that is part of the CTS Late Order Purchase (LOP) plan. Credit card purchase only. Participants analyze samples for DNA with known bloodstain standards provided on cloth substrates. Samples ship first week in July. (STR/YSTR)

Participants analyze samples for DNA with known bloodstain standards provided on cloth substrates. Samples ship first week in January. (STR/YSTR)

Participants analyze samples for DNA with known bloodstain standards provided on Whatman FTA® Micro Cards. Samples ship first week in March. (STR/YSTR)

Participants analyze samples for DNA with known bloodstain standards provided on Whatman FTA® Micro Cards. Samples ship third week in April. (STR/YSTR)

Participants analyze samples for DNA with known bloodstain standards provided on Whatman FTA® Micro Cards. Samples ship first week in September. (STR/YSTR)

Participants analyze samples for DNA with known bloodstain standards provided on Whatman FTA® Micro Cards. Samples ship third week in October. (STR/YSTR)