Authorities are overwhelmed by the quantities of drugs being smuggled in, out and through their countries. To compound the issue, the attacks of September 11, 2001 have heightened global concerns over terrorism, increasing the challenges faced by customs and border inspectors.

When an unknown substance is discovered, trace detection provides quick, positive identification on the spot. If contraband is ruled out, the incident is only a minor inconvenience for inspectors and law-abiding travelers. Waiting for offsite laboratory results while detaining suspects is eliminated. By analyzing invisible particles that remain after contact with explosives or narcotics, trace detectors help inspectors screen people and cargo without a time-consuming physical search.

Spot checks
Using trace detection for spot checks at checkpoints is an effective way to prevent narcotics and explosives from entering a country. It also provides a clear deterrent. Simultaneous dual-mode detectors test for explosives and narcotics in one sample, cutting screening time in half.

Trace detection is used by customs and border inspectors in: