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Accreditations

Orchid Cellmark holds multiple accreditations from various organizations and adheres to the standards of each accrediting organization. Compliance by our laboratories to these accreditation requirements provides assurance to our clients that test results provided by Orchid Cellmark are of the highest quality. Clink on the links above to learn more about our accreditations.
Home > Forensic DNA | DNA Forensic Testing | Forensic DNA Tests > Screening (Blood, Semen, Saliva Detection)
Forensic DNA

Casework Services:

Screening (Blood, Semen, Saliva Detection)

Prior to DNA analysis, items may need to be screened for the presence of biological fluids. Orchid Cellmark provides both presumptive and confirmatory tests. Presumptive testing simply indicates the presence of a body fluid. Confirmatory tests involve additional procedures to identify a body fluid.

Orchid Cellmark provides presumptive testing for blood, saliva, and semen. DNA profiles may also obtained from additional items such as clothing, watches, cigarette butts, partially eaten food and drinking containers that the perpetrator may have left at the scene of the crime. A swabbing or cutting from these items is used for analysis.

Orchid Cellmark provides confirmatory tests for semen and blood. The confirmatory tests for semen include the microscopic identification of spermatozoa and the presence of prostatic protein, p30. The Hematrace test is used to confirm the presence of blood.