Abstract
In rape cases the police laboratory may be requested to examine the garments of the female and/or the garments of male suspects. Various methods for examination of semen confront the technician. The acid phosphatase method of Dr. Steffen Berg has proved of value in our hands. The discovery of the high concentration of acid phosphatase in prostate secretions is the basis for this method of testing for seminal stains. There are several advantages to the method. It makes no difference whether spermatozoa are present or absent, so that the test is useful in cases of asperima. Sterility due to operation, senility, or interfering fluids may result in loss of the spermatozoa, but the acid phosphatase will be detectable in many such cases.
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