Identification and grouping of saliva

ABSTRACT

The saliva is of most concern in some forensic problems. The aim of this work was to identify the saliva stains by the suitable method and to choose the suitable method for ABH grouping of saliva in the smallest portion of the stained materials. This work also compared between the methods which were used to evaluate the results of these methods. The saliva of 50 Egyptian individuals were submitted to detection of amylase activities and to detection of secretor state and ABH grouping of fresh saliva by standardized agglutination inhibition methods and also by absorption-elution technique at different time intervals. The results of this study show that, by the standardized agglutination-inhibition method, more objective data were obtained. By this method, it was detected that 78% of the individuals were secretors while 22% were nonsecretors, 8% of the individuals were aberrant secretors and 6% of them were paradoxical secretors