Quantity and Culpability in Federal Drug Sentencing

Abstract Since the 1980s, Congress has hoped that federal drug enforcement and punishment will focus on the leaders of drug-trafficking organizations and those who engage in violence. Yet it is now well-known that federal drug prosecutions instead significantly concentrate on low-level participants in the organized drug trade: couriers, mules, storers, street-level dealers, and others. Because the Controlled Substances Act and federal drug guidelines assign and recommend punishment based on formulas that emphasize drug quantity, these low-level participants often receive hefty sentences, either because of the application of a lengthy statutory minimum or by virtue of being sentenced under a severe (yet advisory) guidelines range. For decades, advocates, observers, and policymakers have debated how to address this problem. This essay offers two contributions. First, it uses U.S. Sentencing Commission data to provide a descriptive empirical account of the considerable disconnect between culpability and sentence lengths for federal defendants who perform low-level functions in drug-trafficking organizations that deal in large quantities of drugs. The author shows that judges appear to respond to this disconnect by routinely sentencing below the advisory guidelines range for drug-trafficking defendants convicted in the upper echelons of offense levels—a trend that has been increasing over the last twenty years. Second, the essay argues that these persistent downward reductions highlight a structural flaw in the drug guidelines’ reliance on quantity as a proxy for culpability. The author asserts that reducing base offense levels at the top of the drug guidelines would better align recommended sentences with judicial practice, legislative intent, and the actual conduct of low-level defendants in large-scale drug conspiracies.