From 1970 to 1975, Douglas Perez was a deputy sheriff for the Contra Costa County Sheriff’s Office (California). Currently, Dr. Douglas Perez teaches courses in the criminal justice field and has significant experience also in the sociological theory area. His classroom foci include the study of the police, law and society, the drug war, and introductory level courses. Dr. Douglas Perez is the author of The Paradoxes of Police Work and Common Sense about Police Review. His is also the co-author of Police Ethics: A Matter of Character.