The Test

Yesterday, the crime lab received a white crystalline substance to be tested for the presence of Methamphetamine Hydrochloride and crushed leaves that is suspected to be marijuana. Our supervisor tested the white crystalline substance first. Like what I have written before about how to test the presence of shabu, she did that same test again. She also compared the white crystalline substance's reaction to tawas, rock salt, iodized salt and white sugar's reaction to the three reagent and only the unknown white crystalline substance gave a positive result.
Next, our supervisor tested the crushed leaves that is suspected to be Marijuana. She also used a standard or real dried marijuana plant to compare it to the suspected crushed leaves. She compared their smells and they were different. She used the fastblueb salt test. And after she did the test, the result was negative because it was dark red in color and the expected color if its positive is bright red.


posted by Isabelle