Richard Hahn, MPA is Executive Director of the Crime & Justice Program at New York University’s Marron Institute of Urban Management. At NYU Mr. Hahn has developed undergraduate and graduate courses on drug and crime policy. He is a frequent conference speaker, an occasional guest contributor to local and national media outlets, and moderates a regular series of educational webinars on drug-abuse prevention for state law-enforcement officials. Since 2015 he has advised state and national governments that seek to design legal adult-use recreational cannabis markets, most recently in New York and Washington State. Other current areas of research include the supervision and treatment of drug-involved individuals, alternatives to solitary confinement in correctional settings, diversion programs for violent gun-involved offenders, policing minor crimes, and evaluation of drug-prevention curricula in primary educational settings. In all of these efforts Mr. Hahn focuses on the design of appropriate sanctions that leverage the intersection of harm and deterrence.