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)