Evaluation of the NIK® Test: Primary General Screening Test for the Presumptive Identification of Drugs
 

The validity of the NIK® narcotics test has been questioned by various authors and scrutinized in multiple court trials, yet validation studies for NIK® tests are not readily available either in the literature or from the manufacturer. Therefore, 17 samples including drugs of abuse, caffeine, sugar, and mixtures of drugs with sugar and caffeine were tested with the NIK® testing system. Detailed reports with instructions, observations, pictures of the results, and conclusions are provided in the supplemental materials. These reports serve as a useful tool for law enforcement officers who conduct drug testing in the field or in the correctional system.