The Security Industry Association (SIA) announced the appointment of Marcus Dunn as the association’s director of government relations. Dunn replaces Don Erickson, who was named as SIA’s chief executive officer late last year. Dunn comes to SIA from Susan Davis International, a public relations firm, where he served as a senior account executive.

Dunn’s previous work includes nearly a decade on Capitol Hill, stints as a senior legislative advisor for Patton Boggs, LLP and time as the sole proprietor of legislative consulting firm Capitol Centric, LLC. Dunn also served as a press secretary for the Colorado State Senate and served six years in the National Guard in Colorado and Virginia.

“Marcus brings a wide variety of experiences to SIA, including work with associations, media, public and government relations,” said SIA chief executive officer, Don Erickson. “We are excited to have him on the team and look forward to him leading an increased role for SIA government relations in advancing the best interests of our membership, and the security industry as a whole.”