Francis Shen says that he often calls neurolaw a “new” and “emerging” field, but even he doesn’t completely believe that. Shen is an associate law professor at the University of Minnesota and executive director of education for the MacArthur Foundation Research Network on Law. He says we’ve been using neuroscience in law for decades, but there have been some major developments over the last few years. For example, brain science is increasingly informing how we view criminals —  especially adolescents  —  and how we sentence people. We talk with Shen about the influence neurolaw has on society and how the field has developed over time.