Attorneys not only encounter opioids in everyday news. Criminal attorneys hear of these drugs on a much too regular basis when it comes to impairment, fatalities, and street drug dealings. What pearls of science do attorneys need to know about these drugs? How do they work? How do they poison and take the lives of so many? Where do they fit into postmortem cases? Where is fentanyl found? How does naloxone work and when does it work, and when does it not? These questions and more will be …