The Bexar Forensic Science Center in San Antonio is accountable for identifying a variety of narcotics, such as heroin, cocaine, marijuana, and fentanyl, for criminal investigations. The scientists at the center deal with these substances on a everyday basis and operate to resolve the mysteries behind them. They analyze anything from significant seizures to little amounts of narcotics just before returning them to law enforcement officials. The most usually tested substances are marijuana, meth, and cocaine, with methamphetamine becoming the most often identified drug. The scientists have also observed an boost in counterfeit tablets containing fentanyl, especially round blue tablets with the imprint of M30 and tablets that resemble oxycodone. In spite of the unpredictable nature of their operate, the scientists are devoted to serving and assisting their neighborhood by using the science behind their analyses.