In July 2019, Warren Hamel, along with co-authors Jane F. Barrett and Stephen P. Solow, published a chapter, "Environmental Criminal Enforcement," in the second edition of Environmental Litigation: Law and Strategy, a publication of the Environment, Energy and Natural Resources Section of the American Bar Association. The following is an excerpt:
Criminal prosecutions of environmental violations continue to constitute a small proportion of both criminal cases and of all environmental enforcement actions in the United States. However, the serious consequences of such cases, which include incarceration, significant fines, multiyear terms of probation, and the loss of government contracting opportunities, compel those involved with any environmental enforcement litigation to understand the unique substantive and procedural issues associated with prosecution of environmental violations as crimes.