JYJ YUCHUN, the reasons why the drug test, which was supposed on "The three-week schedule," was done in a few days were reported.

● The number of narcotic examinations requested by the police to the “National Science and Forensic Research Institute”is about 18,000 annually. It is exploding 1.8 times in comparison with the previous year.

● Because they do not know what kind of drugs are used by the suspects, the test will use about 30 drug samples.

● 15 researchers will interpret the numbers and graphs of the test results as “drug detection evidence” for narcotics.

● As well as the essential components of narcotics, they must also find metabolized components in the body.

● In the case of YUCHUN, the Methamphetamine component was detected in 60 body hairs such as leg hairs.

● As it was a case of social high interest, it took only a short time for the results to appear after conducting the drug test as the highest priority.