The United States Drug Enforcement Administration Office of Forensic Sciences laboratory system is comprised of eight regional laboratories distributed across the United States. Domestic methamphetamine seizures are identified and quantitated in the laboratory system’s regional laboratories. The information provided on the following pages summarizes the collective results of methamphetamine samples...

The United States Drug Enforcement Administration Special Testing and Research Laboratory’s Cocaine Signature Program (CSP) provides scientific data and intelligence information on illicit cocaine. Submissions to the CSP are analyzed for purity, cutting agents, processing solvents, and classified to a geographic origin. CSP analyzes exemplars of cocaine seizures greater than...

The United States Drug Enforcement Administration (DEA) Office of Forensic Sciences laboratory system is comprised of ten regional laboratories distributed across the United States. Cocaine seizures ranging in weight from residue to multiple kilograms are routinely analyzed in these laboratories. The analytical protocol requires the identification of cocaine, other controlled...

DEA has prepared this product primarily for law enforcement counterparts (state, local and tribal) and public safety and protection officials with a focus on enduring and emerging threats at both the national and regional levels. This report represents what will be the first of regular STREET reports prepared for and...

WASHINGTON – DEA first warned the public of a sharp increase in fentanyl seizures containing xylazine in our March 2023 Public Safety Alert . Since that time, xylazine’s growing prevalence in the fentanyl supply continues to make the deadliest drug threat facing this country even deadlier. In 2023, 30% of...

DEA has prepared this product primarily for law enforcement counterparts (state, local and tribal) and public safety and protection officials with a focus on enduring and emerging threats at both the national and regional levels. This report represents what will be the first of regular STREET reports prepared for and...

This document is an internal Drug Enforcement Administration quality system document. The document is updated periodically and is current as of November 6, 2023 and is provided for informational purposes only. Any sensitive, privileged or otherwise protected information has been redacted, to include the redaction of some document in their...

INTREPID confirms both liquid veterinary preparations and powdered xylazine are being used to adulterate fentanyl. INTREPID observed chemical markers in xylazine seizures that can assist in determining precursors, synthetic routes, and potentially connecting cases.

This document is an internal Drug Enforcement Administration quality system document. The effective period of the document is January 25, 2023 to November 5, 2023 and it is provided for informational purposes only. Any sensitive, privileged or otherwise protected information has been redacted, to include the redaction of some document...

Xylazine, reported as an adulterant in an increasing number of illicit drug mixtures, has also been detected in a growing number of overdose deaths. It is commonly encountered in combination with fentanyl but has also been detected in mixtures containing cocaine, heroin, and a variety of other drugs. However, xylazine...