[Immunohistochemical detection of ABH blood group factors in hair]

Commonly used serological methods i. e. absorption-elution test and mixed agglutination do not always allow discriminate the nature of blood group substances A, B, H in hair investigation. The finding need not sometimes be unequivocal. A completion of forensic traditional serological methodology by indirect immunoperoxidase technique enables to eliminate doubts about interpretation of results. There is possible to identify blood group substances A, B, H in preserved medullary core of hair in this way.