earticle

영어

According to the trends in crime occurrence and the characteristics of offenders, there is a reported downward trend in the overall number of crimes, while incidents of sexual violence crimes are on the rise. This increase in sexual violence crimes is presumed to be due to the rise in digital sex crimes and an the change in societal perceptions of sexual violence. Groping-type sexual assault constitutes the largest proportion of the sex crimes. Due to exaggerated media promotion recently, there are concerns that some cases may be misunderstood as applicable to the entire spectrum of incidents, leading to an increased perception that genetic analysis alone can resolve all groping-type sexual assault cases. In this study, the groping-type sexual assault cases with secured comparison samples of the suspects were selectively examined, and the detection rates of short tandem repeat (STR) and Y chromosome STR (Y-STR) DNA types in the surprise groping-type sexual assault cases were analyzed and compared to those of the groping-type sexual assault cases. The detection rates for STR DNA types in groping-type sexual assault cases and surprise groping-type sexual assault cases were similar, at 80% and 70%, respectively: however, the matching rates for the suspects' STR DNA types displayed a significant disparity, with 20% for groping-type sexual assault cases and 1% for surprise groping-type sexual assault cases. Furthermore, the detection rates of Y-STR DNA types for groping-type sexual assault cases and surprise groping-type sexual assault cases were 60% and 30%, respectively, with the matching rates for the suspects' Y-STR DNA types also showing a significant difference of 40% and 7%, respectively. It is more difficult to secure the suspect's DNA type in surprise groping-type sexual assault cases than groping-type sexual assault cases. Therefore, it should be recognized that genetic analysis alone cannot resolve all incidents.