Requires controlled dangerous substances seized by law enforcement officers to be tested for presence of xylazine; requires reporting to DOH.

This bill requires New Jersey law enforcement to test all seized controlled dangerous substances for xylazine, a non-opioid sedative increasingly mixed with street drugs. The testing must follow State Police protocols, and results must be reported to the Attorney General and then to the Department of Health for inclusion in statewide overdose data systems. It directly affects law enforcement agencies, forensic labs, and health authorities by expanding existing drug monitoring to specifically track xylazine in illegal substances. The key mechanism is mandating standardized testing and creating a centralized database to monitor xylazine trends alongside fentanyl, aiming to inform public health responses to drug-related harms.