Holmes has served in a variety of assignments to include: Patrol, K-9 Officer, Narcotics and Vice Detective, Street Response Unit, and the Tactical Negations Team.
In July of 2009 he was assigned by the Bureau of Police to lead the department’s G-20 Liaison Unit in preparation for the Pittsburgh G-20 Summit. In this position he was responsible for the coordination and leading a team that brought in law enforcement officers from 70 plus police departments from around the country to assist in providing security for the G-20 Summit.
Over the years, Holmes has completed the overall Pittsburgh Bureau of Police comprehensive operation plans for, First Night 2011, 2011 NHL Winter Classic, 2011 AFC Championship game, Super Bowl XLV and 2012 NHL Draft.
Commander Holmes earned his B.A. degree from Slippery Rock University. He served as a White House Intern. Commander Holmes has attended several administration and management classes, including Police Supervisory In-service Training (POSIT), Police Executive Development Training (POLEX),Command Institute for Police Executives, Law Enforcement Executive Development Association 28th Supervisor Leadership Institute, Leadership and Mastering Performance Management, Leadership and Command, 2014 FBI Leadership Program (Session 17), and the International Association of Chiefs of Police, Leadership in Police Organizations (LPO).
In addition, Commander Holmes participates in a number of professional and volunteer activities including (past and present) National Organization of Black Law Enforcement Executives (NOBLE), Alpha Phi Alpha Fraternity, Inc., Boy Scouts of America Rights of Passage 2010, Pittsburgh Regional Champions, Leadership Pittsburgh LDI XVIII, Robert Morris University Criminal Justice and Sociology Advisory Committee.
Holmes was named one of 50 men of Excellence by New Pittsburgh Courier.
In June of 2008, the Eric L. Holmes Criminal Justice Scholarship was established at Slippery Rock University.