Which statement regarding chemical field tests for narcotics and dangerous drugs is most accurate?

Question

Quizplus · Accepted Answer

Presumptive field tests are designed to quickly and easily detect the presence of controlled substances, but they may produce false positives. It is important to confirm any positive result using a laboratory analysis. It is never acceptable for law enforcement officers to taste suspected controlled substances. The final analyses should be conducted in a laboratory setting, not in the evidence/property room. It is preferable to use as much of the suspected substance as possible for testing to increase the accuracy of the results.

Which Statement Regarding Chemical Field Tests for Narcotics and Dangerous