Communication Skills, Report Writing, and Courtroom Testimony for Forensic Analysts

Semen & Cellular Material

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Reporting Guidelines - Semen & Cellular Material
Test	Reporting
Positive Acid Phosphatase (AP)* or other preliminary color test	Analysis of (Exhibit__) gave presumptive chemical indications for the presence of acid phosphatase, a component of semen.
Positive AP AND Positive Microscopic (sperm)	Spermatozoa were identified on _____. Microscopic examination of __ demonstrated the presence of spermatozoa.
Positive AP AND Negative Microscopic (sperm) AND Positive P30	Semen was identified on _____. Further characterization may be possible using y-chromosome specific marker DNA analysis. Please contact the Forensic Biology section for a list of laboratories that conduct this analysis. Microscopic examination of __ failed to demonstrate the presence of spermatozoa. Analysis of __ demonstrated the presence of semen.
Positive AP AND Negative Microscopic (sperm) AND Negative P30	No semen was identified on _____.
Negative AP	No semen was detected on _____. Analysis of__ failed to demonstrate the presence of semen.
Negative Visual/Alternate Light Source (ALS)	No stains consistent with semen were observed on ___.
Postive (nucleated) Microscopic (cellular material)	Nucleated cellular material was detected on _______.
Positive (no confirmation of nucleus) Microscopic (cellular material)	Cellular material was detected on_________ .
Negative Microscopic (cellular material)	No cellular material was detected on _____.
Unevaluated Microscopic (cellular material)	Swabs were collected from _______ and were preserved and retained in laboratory frozen storage.
*There are numerous preliminary color tests that can be used in forensic testing methods. The most common are noted; however, other preliminary color tests could be reported similarly.

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Fecha de Creación: 18 de Julio de 2023