Everyone has an opinion on Getxent tubes. Some handlers swear by them; others are sure the polymer soaks up every odor in the room and slowly lies to your dog. So which is it? We break down what a Getxent tube actually is, how POCR technology works, and the peer-reviewed, FBI-funded science behind it - then tackle the contamination question head-on: adhesion vs. absorption, why tubes "expire," and how to store them so they stay clean. Real odor, real science, no license requi

Which explosive odors should your detection dog learn first - and does the order actually matter? (It does.) A handler's walkthrough of the full imprinting sequence, from RDX to HMTD, and the vapor-pressure science behind what your dog is really smelling.

Contamination decisions made during imprinting can follow your detection dog for years. Learn why sterile imprinting builds the foundation for reliable real-world detection — and what a practical, repeatable contamination control system actually looks like, from glove protocols to container cleaning to proper storage.

A detection dog can be honest, motivated, and confident… while still being wrong - because the dog is being honest about the picture they learned. In this article, Bill Gaskins of Integrity Noseworx and Precision Explosives break down how contamination quietly sneaks into training, why it creates false alerts, and the simple systems that restore a clean target-odor picture.