The Appearance and Grouping of Mixtures of Semen and Vaginal Material

Abstract

The grouping reactions of seminal stains and mixtures of semen and vaginal material have been collected from approximately 400 cases of sexual assault. These have been recorded together with details of the microscopic appearance of the stains and relevant case-work particulars. The success rate of some of the grouping systems used to type semen has been estimated. The detection of seminal ABO antigens and phosphoglucomutase (PGM) phenotypes in mixtures of semen and vaginal material has been discussed in relation to the proportions of the components of the stains.