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An official website of the United States government, Department of Justice.

Controlled Substances and Seized Drugs

Read an Overview of Controlled Substances

Controlled substances are chemicals that have a legally recognized potential for abuse. They include “street drugs” such as heroin or ecstasy and prescription drugs such as oxycodone. Detecting and identifying controlled substances is a critical step in law enforcement's fight against drug-related crime and violence.

On this page, find links to articles, awards, events, publications, and multimedia related to controlled substances and seized drugs.