A consultant for human rights organizations and police departments, a frequent op-ed writer and a contributor to The Nation, he researches the politics of policing and the policing of politics. His book City of Disorder deals with the rise of neoconservative politics and policing. Since coming to CUNY as a doctoral student in 1993, he served as co-chair of the Doctoral Students Council and as head of the Adjunct Organizing Project, was involved in the formation of CUNY Adjuncts Unite, has served six years on the PSC Legislation Committee, is a NYSUT PAC representative, and is now in his third term on the PSC Executive Council and in his first term as Brooklyn College chapter chair.