Heroin, cocaine, marijuana and fentanyl — these narcotics make their way in and out of the Bexar Forensic Science Center every day, and it’s the job of the scientists there to identify these drugs for criminal investigations.

With the current opioid and fentanyl crisis, many people have heard of Narcan, which can reverse overdoses. Law enforcement and schools have it, and pharmacists believe anyone on opioids should have it too.