| dc.description.abstract | In the investigation process, blood group is one of the tools that can help narrow
down the suspects in the process of identifying a person. Apart from blood, blood group
antigens can also be detected in body fluids, one of which is saliva. This is possible in
cases of crimes that leave no trace of the perpetrator, such as in cases of harassment,
rape and robbery. People whose blood group can be determined from body fluids are
called secretors, while the opposite is called nonsecretors. The aim of this study was to
analyze the effectiveness of blood group examination from direct saliva compared to
saliva absorbed on cigarette butts. This type of research is a quasi experimental. Direct
saliva sampling was carried out using the draining method, while saliva on cigarette
butts was obtained from subjects who were asked to smoke cigarettes up to a specified
limit. Then the samples were tested using the absorption inhibition method. The results
showed that the blood group examination detected from direct saliva samples was
90,6%, while from saliva samples absorbed in cigarette butts was 62,5%, then the data
analyzed by chi square test showed a significant difference (p<0.05). The conclusion
of this study is that the examination of blood groups from saliva samples collected
directly is more effective than saliva samples on cigarette butts | en_US |
