Objectives:The saliva was first analyzed for the presence of anti–A and anti–B hemagglutinins in 1928. However, it was not been utilized asevidence in criminal investigations because of insufficient techniques available at that time. Hence, the present study was designed toevaluate feasibility of ABO group in medicolegal cases by determining the efficacy and accuracy of ABO blood group determination from saliva.

Methods: A total of 200 subjects (100 males and 100 females) were studied. All of them were selected at random visiting to the department of oral medicine and radiology. The blood group of each subject was determined from saliva by absorption–inhibitionmethod.

Results:The present study showed that 77% subjects are secretors of antigen in saliva.

Conclusion:Results can be utilized for identification of subjects, ruling out identification, determination of inheritance in medicolegal cases.