Cedric Alexander, who served as Rochester’s police chief during the Johnson administration, is coming back to Rochester and to city government – this time as a top administration official.

Mayor Lovely Warren announced this morning that Alexander will be her new deputy mayor. He is currently deputy chief operating officer and director of public safety in DeKalb County, Georgia. He served as deputy chief — and later, chief — in Rochester from 2002 to 2005 and has frequently been a source for both media and government on police-related issues, appearing on television, writing guest commentaries for media, and testifying before Congress. He also served on President Barack Obama’s Task Force on 21st Century Policing.

Alexander replaces Carlos Carballada, who stepped in to serve as deputy after Leonard Redon retired. Carballada isn’t leaving city service, however. He’ll “continue to work in an executive role in the Department of Neighborhood and Business Development,” according to a City Hall press release, “to further improve customer service and job creation strategies.”