Mark has drafted amicus briefs defending gun safety laws in courts across the country, including: the United States Supreme Court, the First, Fourth, Seventh, Ninth, Tenth, Eleventh and D.C. Circuits, United States District Courts in: the District of Massachusetts, Northern District of New York, District of Columbia, Northern District of Georgia, Western District of Michigan, Central District of California and Eastern District of California, the Wisconsin Intermediate Court of Appeals and the Florida Supreme Court.
Mark’s scholarship focuses on this history of firearms regulation in the United States and Great Britain. His work forms the basis of the originalist defense of most firearms laws and has been widely cited.
Prior to joining Everytown, Mark was a fellow in the New York County District Attorney’s Office in the Cybercrime and Identity Theft Bureau where he investigated and prosecuted credit card and check fraud, stalking, computer hacking and theft. He is a graduate of Georgetown University Law Center.
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