Full-Time Faculty


Mackey, Cheryl L. 

Professor Cheryl Mackey received her Juris Doctor degree magna cum laude from U.C. Hastings College and was inducted into the Order of the Coif legal honor society. She received a Master’s of Science degree in Criminal Justice with honors from Michigan State University and a Bachelor’s degree in Political Science from UCLA. She is licensed to practice law in California and is a full-time instructor and Department Chair for the Administration of Justice program at Chabot College in Hayward, California. 

Professor Mackey is also a consultant for the California Commission on Peace Officer Standard Training (POST) in the area of C2 (Cognitive Command Training), assessing and reviewing policies, procedures, practices and tactics regarding use of force - including escalation and de-escalation; use of lethal and less lethal force; equipment selection, deployment and reporting; and monitoring of use of force and any other policies and procedures relevant to this issue. The goal is to ensure comprehensive and current compliance (reflecting best practices); and that policies are effective in guiding and governing professional, well-regarded and trusted law enforcement/police agencies.

Prior to teaching at Chabot, Professor Mackey taught at Diablo Valley College, U.C. Hastings College of the Law, and worked as an attorney representing police departments, fire departments and other agencies in various legal matters in both federal and state court. She also served as a Graduate Research Fellow for Chancellor/Professor David L. Faigman at U.C. Hastings College of the Law, and as a Law Clerk to both the U.S. Attorney's Office, Strike Force Division, in San Francisco and the California Assembly Judiciary Committee in Sacramento. She is an advisor and former Commissioner for the Contra Costa County Juvenile Justice Commission, as well as a former Cadet with the Contra Costa County Sheriff's Department and Danville Police Department.

Publications: Co-Author (as Cheryl D. Lema), Justice Clarence Thomas and Incommunicado Detention: Justifications and Risks, 39 Valparaiso U. L. Rev. 783 (2005).


Part-Time Faculty


Boykins, Sheryl

Sheryl Boykins is currently the Chief of Police at California State University East Bay (CSUEB). Chief Boykins began her professional career with the City of Hayward Police Department where she worked for 28 years before she was selected for the position of Chief of Police at CSUEB. She began her educational career at Chabot College and received her AA degree in Administration of Justice. Chief Boykins believes her degree at Chabot served as the foundation to help her progress through the police ranks in order to obtain a Chief’s position. She has since obtained her bachelors and masters degree, but believes had it not been for the wonderful educational experience she enjoyed at Chabot, none of this would have been possible. Chief Boykins encourages students to reach out to her if they would like to discuss the world of public safety.  


Giambona, Salvatore

Salvatore Giambona is a licensed attorney and currently serves as a Deputy Public Defender handling felonies, misdemeanors, and juvenile cases. He has tried nearly forty trials to jury verdict and has conducted countless evidentiary hearings in his time as a Public Defender. Mr. Giambona earned his bachelors degree with honors from the University of California, Santa Barbara in Psychology and Sociology in 2003. In 2007 he earned a Master of Arts in education from the University of California, Santa Barbara. In 2010, he earned his Juris Doctor degree from University of California, Hastings College of the Law.

In 2016, the Solano County Bar Association recognized Mr. Giambona's work on behalf of his clients and honored him with the Leonard Oldwin Jr.  Memorial Award for zealous advocacy. He became a member of the board of the Solano County Bar Association in 2017. He is also an advisor to the Contra Costa County Juvenile Justice Commission and is a frequent guest lecturer for the Administration of Justice Department at Chabot College.

Mr. Giambona is a lifelong resident of California and has spent much of this time in the San Francisco Bay Area. 


Graham, Jessica 

Jessica Graham is a licensed attorney in Tennessee and California. Combined, Professor Graham has 14 years of legal experience. Her criminal justice experience includes having served as a district attorney in both Tennessee and Riverside County, California. She earned her undergraduate degree from the University of Liberty in Virginia and her Juris Doctor degree from the University of Memphis in Tennessee. 

Professor Graham has prosecuted all manner of crimes including prison crimes, gang cases, homicides, career criminals and white collar crime. As a district attorney, Professor Graham has trained other prosecutors as well as law enforcement and outside agencies. 


Johnson, Charles W.

Charles W. Johnson, Jr. began his forty year professional career teaching 8th grade science and then high school chemistry, while coaching multiple sports for Montgomery County Public Schools, Rockville, Maryland from 1978 - 1985. During that time, he was recognized as a Mentor Teacher for students and a candidate for educational administration.

In 1985, Mr. Johnson was sworn in as a Special Agent with the Federal Bureau of Investigation (FBI). Following Quantico training, Mr. Johnson was assigned to the Las Vegas Division of the FBI, where he conducted violent crime and property crime investigations. In 1990, Mr. Johnson transferred to the New York Division of the FBI. In 1998, he transferred to the San Francisco Division.

While conducting violent crime and violent gang investigations, serving as a Program Manager, and Supervisory Special Agent leading a multi-jurisdictional task force, Mr. Johnson continued to seek opportunities to provide training to law enforcement. He completed FBI Police Instructor Certification (1990) and Advanced Instructor training (2004).  He conducted courses for law enforcement instructors and served as a trainer and presenter at law enforcement conferences and seminars. In 2006, Mr. Johnson was in the initial class selected as Adjunct Faculty to the FBI Leadership Development Institute. He designed and conducted training in interpersonal communication, performance management and team dynamics to law enforcement command personnel. In 2010, Mr. Johnson was selected for the FBI Master Police Instructor award.

In 2011, Mr. Johnson was invited to serve as the Instructional Team Lead for the FBI Leadership Development Program at Washington, DC. Leading a team of eight, he provided engaging deployment of leadership principles and facilitation of leadership discussion through week long seminars 2011 – 2013.  After more, that twenty-seven years of service, Mr. Johnson retired from the FBI in 2013.


McAllister, Darryl

Chief Darryl McAllister served throughout the ranks of the Hayward Police Department for more than thirty years. October 1, 2014, he was appointed as Union City’s chief of police. His primary focus—both in policing and in education—is to redefine the importance of police-community engagement as a means to promote trust and transparency in today’s policing.

A ranking officer in both cities, Chief McAllister has commanded several divisions, bureaus, and functions including Patrol Operations, Investigations, Youth and Family Intervention and Counseling Services, School Policing Services, Gang Violence Suppression, Community Policing Services, SWAT, Canine Units, and Media Relations. He also served four years as the Hayward Police Department’s primary Press Information Officer, dealing regularly with news media.

Chief McAllister is also an educator, previously serving as lead faculty at the University of Phoenix, and now as a faculty member of Chabot College, teaching primarily criminal justice and public policy courses. For nearly two decades he has served as a board member of several community organizations, currently serving as the President of the Board at the St. Rose Hospital Foundation, and as a member of the advisory board of the University of San Francisco's International Institute of Criminal Justice Leadership. He participates on the selection panel for the California State Commission on Peace Officer Standards and Training’s Command College Program, and on the board of the San Francisco Bay Area Chapter of the National Organization of Black Law Enforcement Executives. He serves on the boards of several nonprofit organizations in the East Bay, and, in his spare time, he is a youth mentor with Reality Mentor, Inc.

He is a two-time nominee and one-time recipient of Hayward’s Police Officer of the Year Award, a 2007 Recipient of the “Hayward Pearl Award” honoring volunteer service to the community, and he was also awarded in 2013 as University of Phoenix’s Faculty Member of the Year for the San Francisco Bay Area Campus region.  In 2015, he was selected by the Southern Alameda County NAACP for its most prestigious honor—the “Person of the Year” Award.

His manuscript, Law Enforcement Turns to Face Recognition Technology, was published by Information Today Magazine in May 2007. His strategic plan, 2008 and Beyond, was officially adopted and published by the City of Hayward in December 2008, and was the first of its kind for the organization since 1991.  In 2016, he was honored to be one of a select number of police chiefs in the country to be invited to the White House to take part in a critical discussion with President Obama and his staff about how to build trust between police and the communities they serve.

Chief McAllister holds a Bachelor’s Degree in Occupational Studies from California State University, Long Beach, and a Master’s Degree in Administrative Development from Alliant International University. He is currently completing coursework for a Doctorate in Educational Leadership at Saint Mary’s College of California. He is a graduate of the FBI National Academy in Quantico, Virginia—a professional course of study for U.S. and international law enforcement leaders. He is also an alumnus of the California Command College—a graduate level futures study program of the California State Commission on Peace Officer Standards and Training.


Meehan, James  

Mr. Meehan graduated from UC Davis with a Bachelor of Arts degree with a major in Political Science.  Mr. Meehan earned his Juris Doctor degree from the University of San Francisco and is licensed with the State Bar of California to practice law.  Mr. Meehan holds the position of Assistant District Attorney for the Alameda County District Attorney’s Office and is currently assigned to the Consumer & Environmental Protection Division.  Mr. Meehan has held a variety of positions within the District Attorney’s Office including Branch Head, Felony Senior Trial Deputy, Felony Team Leader, Felony Trial Deputy, and Capital Litigation Coordinator.  Mr. Meehan is a past member of the District Attorney’s Special Circumstance Committee and currently serves as the senior member of the Officer Involved Shooting/Critical Incident Team.

 Mr. Meehan is an instructor for the Stanford University, School of Law Trial Advocacy Program.  Mr. Meehan is also a member of the Las Positas College, Administration of Justice Advisory Board.  Mr. Meehan has been an instructor at Chabot College and Las Positas College in the Administration of Justice Programs since 2013.  Mr. Meehan has taught Criminal Law, Evidence, Family Violence, and Homicide Investigation.  Mr. Meehan previously was an instructor for the University of San Francisco, Paralegal Studies Program, where he taught Criminal Law and Procedure.  Mr. Meehan’s professional memberships include the California District Attorneys Association and the California Homicide Investigators Association. 


Moore, Talia 

Dr. Talia Moore is a college professor, self-published author and poet, and forensic researcher specializing in criminal justice, law enforcement culture and community and client engagement.  Dr. Moore is the former Lead Faculty Area Chair and Campus Faculty Assessment Liaison for the Securities and Criminal Justice College at University of Phoenix, Bay Area Campus.  Presently, she works at Chabot College as an adjunct professor in the Administration of Justice Program and at John F. Kennedy University as an adjunct professor in the Criminal Justice Leadership College of Undergraduate Studies. Currently, she is a Research Fellow at University of Phoenix in the Center for Workplace Diversity.

Dr. Moore began her career as a Group Supervisor providing safety, security and programming to detained male and female wards in juvenile hall.  Upon promotion, Dr. Moore became a Deputy Probation Officer.  In this capacity, she supervised several different categories of probationers, to include juveniles, adults, felony drug offenders and the significantly mentally ill. 

Dr. Moore began her collegiate studies at the University of California, Berkeley, earning a Bachelor of Arts degree in Social Welfare with a concentration in Psychology and a minor in African-American Studies.  She continued at Golden Gate University earning a Master’s of Arts degree in Psychology, with an emphasis in Children and Families.  Dr. Moore attended Argosy University American School of Professional Psychology, and received her Educational Doctorate in Counseling Psychology with an emphasis in Forensics.

As the owner and operator of Want Moore, Dr. Moore provides consultation services and professional development training to public and private sector businesses, educational institutions and law enforcement departments.


Nielson, Laura 

Professor Laura Nielson Graduated San Diego State University with a degree in Business Administration/Information System Analysis and Design. She worked for over 8 years in the Information Technology (IT) field before realizing a change was in order.  That desire for change and her background in the IT field led to applying for and graduating from the FBI academy at Quantico, VA as a Special Agent in 1996. Professor Nielson’s first office assignment was in the San Francisco Division chasing computer hackers all over the world. She remained in the San Francisco field office over 22 years before retiring December 31, 2018.  As a Special Agent, Professor Nielson spent most of her career as part of the FBI’s elite Crisis Responses Team, working major cases in computer crimes, crimes against children, violent crime, complex financial crimes, art fraud, bank fraud, and both domestic and international terrorism. 

After joining the FBI’s Evidence Response Team (ERT) in early 1997, Professor Nielson became the Senior Team leader on 9/10/2001, the day before the 9 -11 terror attack.  As supervisor of over 32 Special Agents and professional support members of the ERT team, we processed many complex crime scenes in the US and overseas. She is experienced in all areas of forensic crime scene processing and specializing in body recovery; blood detection, collection and pattern interpretation; post blast scenes and fingerprint processing and collection.  Professor Nielson has collaborated and consulted with local and international law enforcement and military to process crime scenes involving mass disasters, bombing scenes, homicide and shooting scenes. 

Professor Nielson became a certified General Police Instructor in 1998 and have spent more than 20 years developing curriculum and teaching crime scene processing to federal, state and local law enforcement both in the U.S. and overseas.  In 2000, she became an International Police Instructor teaching a 2-week Terrorist Crime Scene Investigation (TCSI) class to international law enforcement academies in several different countries. 


Palermini, Robert

Bob Palermini worked in law enforcement for over 31 years before recently retiring as a Captain with the Hayward Police Department.  Professor Palermini worked a variety of assignments throughout his career including as a patrol officer, Field Training Officer, School Resource Officer and as a Detective before being promoted to sergeant. As a sergeant, Professor Palermini worked as a patrol supervisor and as the supervisor of the departments Youth and Family Services Bureau.  After being promoted to lieutenant, he served as a Watch Commander and was the first lieutenant in the department’s history to manage the Internal Affairs/Professional Standards Unit. 

As collateral duty assignments Professor Palermini was a departmental instructor in Arrest & Control Techniques and he also served as a member of the departments SWAT team. During his seventeen years with the SWAT team Professor Palermini held the positions of: Team Member, Team Leader and as the SWAT Commander. Once promoted to captain he led all three of the Hayward Police Department’s sworn divisions at various times: Field Operations, Special Operations/Community Policing and Investigations.Throughout his career Professor Palermini continued developing his skills and knowledge by enrolling in numerous advanced officer courses at each rank that he held. As a captain, he attended the prestigious FBI National Academy in Quantico, Virginia and the Senior Management Institute for Police Executives at Boston University in Boston, Massachusetts. 

Professor Palermini is also a proud alumnus of Chabot College. After graduating high school, he enrolled in various Criminal Justice courses and he fulfilled his general education requirements at Chabot before transferring to and graduating from Cal State Long Beach.  Professor Palermini often tells his students that the opportunities and knowledge he gained while a student at Chabot College led to his long, successful law enforcement career.