John Scherbenske of the DEA Browse All Authors Famous Quotes by John Scherbenske of the DEA These drugs are being marketed and sold as legal alternatives to marijuana, cocaine, meth and heroin. John Scherbenske of the DEA The chemical companies are altering the compound ever so slightly to avoid our laws here in the United States. Once they alter that chemical, it is no longer a controlled substance. John Scherbenske of the DEA