Speak with an expert today (424) 363-3347(For attorneys only)

NarcoPouch Test False Positive Dilemma

narcopouch test

From as early as the 1900’s, police and investigators across the United States have used NarcoPouch tests to detect illegal drugs and substances. The NarcoPouch test offers a simple and easy way to detect illicit substances; officers simply have to drop the suspected sample into the pouch and watch for changes in color that indicate whether or not the substance is in fact a drug. Police across the United States embraced these easy-to-use “field tests” to bust drug users and dealers. However, it was only until these NarcoPouch tests began putting innocent people in jail that the false positive debate sparked and people started to question whether or not these field tests were in fact flawed. Before we jump into the details of the debate, here’s all you need to know about NarcoPouch tests.

What is a NarcoPouch test?

The NarcoPouch tests were developed as a means of screening and presumptively identifying substances suspected of being illegal drugs. These tests are designed to be completely self-contained, which in other words, means that they are essentially portable chemistry labs in and of themselves. Each test provides all the necessary elements to perform chemical colorimetric tests for commonly abused drugs. In most cases, once a substance has been placed into the pouch, color reactions are almost immediate thus making them ideal for rapid screening. However, as a result of the inconclusiveness of these presumptive tests, they are not used to identify substances in forensic forums or other forums that require concrete rather than speculative evidence.

What is the false positive dilemma?

At the core of the false positive dilemma lies the question of whether or not NarcoPouch tests provide enough conclusive data to determine the substance in question. The examples discussed below suggest that the answer is a hard no.

In 2008 and 2009, Omar Bagasra, biotechnologist from Claflin University used the NarcoPouch KN reagent test to screen 42 legal plant products. Thirty-three of the plant products tested positive for marijuana. Spearmint, peppermint, basil, oregano, patchouli, vanilla, cinnamon leaf, lemongrass, and ginger amongst others, were of the plant products that tested positive for marijuana.

Adam Eidginger, a marijuana activist demonstrated the inconclusiveness of NarcoPouch tests at a press conference held by the Mintwood Media Collective in 2009. Eidginger opened a NarcoPouch KN reagent test bag, swirled it around and then resealed it. The air that was let into the test bag caused a change in color, suggesting that even air has the potential to produce a false positive when using NacroPouch tests.

Another source of false positives when using these types presumptive or screening tests is that of human error. Police or investigators may perform a test incorrectly or they may not have even received the appropriate training to interpret the colors correctly.

Screening tests cast a wide net that allow for many cases of false positive, but rarely result in false negatives. The NarcoPouch tests are purely presumptive tests which hold little certainty and should therefore not to be used as conclusive method to identify the item in question in a scientifically and legally valid fashion.


The content of this article is provided by Connectica, LLC and has not been reviewed by a toxicology expert witness


Spread the love

The National Black Lawyers

top 40 lawyers

civil trial law

Lawyers of Distinction

Recent Blog Articles

Riverside Cross-Examination of Okorie Okorocha

Judge: Thank you. Back on the record matter. Sir, you are still under oath. Okorie Okorocha: Yes, your honor. Judge: Ms. McCauley cross-examination? Prosecutor Ms. McCauley: Yes, your honor. Good afternoon, Mr. Okorocha. Expert Witness Okorie Okorocha: Good afternoon. Am I saying that correctly? Expert Witness Okorie Okorocha: Yes, you…

Spread the love

Read More

Simpson Rips Jones

Publishing Original Scientific Research In 1997, Dr. Simpson was searching the scientific literature on alcohol and discovered several irregularities in work by AW Jones. An article published by Jones and Neri [1] in 1991 stated that the experimental work was reported in an earlier article published by Kelly, Myrsten, Neri,…

Spread the love

Read More

Malibu Sniper Sentenced 119 Years for Killing Camping Father in Front of Kids  

Congratulations to Nick Okorocha for his success in obtaining many acquittals in an impossible trial. Spread the love

Spread the love

Read More

Speak with an expert today!

Contact the offices of Okorie Okorocha for professional and reliable advice which you can trust.

Call (424) 283-0029 Contact Us