Street drug purity testing is a very dangerous and illegal act and must not be carried out. Testing the purity of street drugs not only violates laws and regulations, but also puts individuals in great legal risks and security risks. The drug trade and related activities have been severely cracked down in my country, and any drug-related behavior will be severely punished by law. At the same time, the harm of drugs is huge, which can seriously damage personal physical and mental health, destroy the family, and endanger social security and stability. We should resolutely resist and stay away from drugs and not participate in any illegal activities related to drugs.