Enroll at any time.

Participants will report results for STR/YSTR analyses.

Sample Description: Two known bloodstain standards and two neat prescreened questioned bloodstains. At least one of the questioned samples will contain a mixture of blood and semen. Choose between FTA™ Cards, Swabs, or Cloth known substrates and Cloth or Swab questioned substrates.

On-Demand samples are randomized, and each test may contain a different combination of samples. Results can be returned to CTS until 30 June of the following year for which a test was purchased (e.g. a test purchased for 2025 will have a due date of 30 June 2026). Upon submission, an Individual Report will be automatically logged to the Individual Report Library and provided to the primary contact on file via email.

Samples for current-year tests ship within two business days after payment is received and processed. Tests for next year will ship at the beginning of that year or within two business days after payment is received and processed, whichever date is later.

Additional Information: Please contact us directly via email if you require a large quantity of tests.

This test is included on CTS’ Scope of Accreditation to ISO/IEC 17043.