Seminal stains

Seminal stains can be a real proof for sexual offences. In the study of material evidence must be installed: established whether the spot seminal fluid and the group to which refers the sperm.
The question of ownership of sperm particular person decide comparison group studied sperm with the blood group of the suspected person. Blood group and the group secretions (semen) the person is the same, but some people in the discharge may be undetectable agglutinogen contained in the blood, which take into account when judging.
Seed spots have whitish or yellowish in color, thick to touch the edge of the spots resemble a map. Under the ultraviolet rays they flyuorestsiruyut whitish-blue and white colour; the presence of sperm determine microscopic examination;