Glossary
ETD — Explosive Trace Detection
Last updated: 6 Jul 2026Reviewed by Ms. Rubab Nizami, Lead AVSEC Faculty
In short
ETD (Explosive Trace Detection) is a screening method where a swab is taken from a bag, laptop or hands and analysed by a machine for microscopic traces of explosive chemicals. It detects residue that an X-ray cannot see.
- Full form
- Explosive Trace Detection
- Category
- Screening