Legal Y-STR Male DNA Test

The Legal Y-STR DNA Test is used to determine whether two male individuals share a common paternal line. This test analyzes markers on the Y chromosome, which is passed from father to son with little change across generations. Matching Y-STR profiles indicate a shared male-line ancestry, while differences confirm that no direct paternal lineage exists. This test confirms whether a common paternal line is present but does not identify the specific biological relationship.

All testing is performed by an AABB-accredited U.S. laboratory using validated procedures and strict chain-of-custody protocols. Participant identities are verified at the time of collection, and all samples are securely documented and handled to ensure results are admissible for court and official use in all 50 states. Final reports are notarized and issued as official documentation.

Sample collection must be completed by a trained professional. You may choose Professional Collection Service at a nearby approved facility through our nationwide network, or arrange collection through your own physician or medical clinic. If participants are located in different cities or states, separate collection appointments can be scheduled so each individual can be tested at a convenient location.

Once all samples are received by the laboratory, testing is completed and results are typically delivered by secure email within 24 hours of completion, if email delivery is selected. A notarized hard-copy report is mailed within approximately one week.

If you are unsure whether Y-STR testing is the appropriate option for your situation, our team can help you determine the most suitable testing approach.