Dr. Samuel Belsham Moki serves as Director of the Department of Environment (DOE) and brings more than 22 years of experience as an adjunct instructor at various universities in the Washington, DC area, where he has taught undergraduate and graduate-level courses extensively.

His tenure at DOE includes roles such as Special Assistant to the Director (2006-2007) and Associate Director of the Environmental and Sustainability Services Division (2007-2013). Additionally, he was appointed Solid Waste Commissioner for Prince George's County from 2007-2013 and subsequently worked as Grants Manager for DOE from 2013-2014.

Between 2015 and 2024, Dr. Moki served as a contractual Public Board Member charged with personnel and program evaluations for the United States Department of Agriculture. He also contributed as a Commissioner on Maryland's Governor's Commission for African Affairs.

As a published author of books, book chapters, and peer-reviewed articles, Dr. Moki demonstrates a strong commitment to environmental stewardship. He consistently pursues opportunities to advance environmental preservation and improvement throughout Prince George's County. Through leadership in advocacy, program initiatives, and customer service, Dr. Moki remains dedicated to elevating the Department of Environment's mission and impact within the community.

Dr. Moki holds a law degree, two master's degrees - in criminal justice and environmental management - and earned his Ph.D. in political science with a minor in public administration from Howard University, in Washington, D.C.