Command Staff

Chief Leal  Chief James Leal started his career as a Deputy with the Alameda County Sheriff’s Department, followed by the San Mateo Sheriff’s Department. Chief Leal was then hired by the City of Newark as a Police Officer in 1988. Over the next 20 years Chief Leal moved up the ranks, working in almost every assignment in the police department. Chief Leal was appointed to the position of Police Chief on August 1, 2008. He is the eighth Police Chief since the City's incorporation in 1955.

Chief Leal earned his Associate of Arts degree in Administration of Justice from Chabot College in 1985. He earned his Bachelor of Arts degree in Business Management from St. Mary’s College in 2003, as well as his Masters Degree in Public Leadership in 2006. He has been an Administration of Justice Instructor at both Ohlone and Chabot Colleges. He is also a graduate of the California Commission on Peace Officer Standards and Training Command College and the Senior Management Institute for Policing in Boston. Chief Leal is a member of the International Association of Chiefs of Police, the California Police Chiefs Association, and the California Peace Officers Association.  He currently serves as the Chair of the CPCA/CPOA statewide traffic safety committee and serves on the Board of Directors for the CPCA.  Chief Leal is also a member of the Newark Rotary Club and has served as the Director of International Services for Newark Rotary, as well as President, in 2008-2009.

Chief Leal can be contacted at or (510) 578-4725.


Commander Carroll  Commander Mike Carroll has been a Police Officer for the City of Newark since April of 1991. He has a Bachelor of Science degree from California State University, Hayward.

Commander Carroll is currently assigned Administrative Commander. His past specialized assignments include: Detective Supervisor, Canine Supervisor, Field Training Officer, School Resource Officer, Trauma Support Team Member, Hostage Negotiator, and Explorer Advisor. He was the Police Department's first gang detective when he was selected to join the Southern Alameda County Gang Suppression Task Force.  Commander Carroll was selected as NPD Officer of the Year in 2004 and California Junior Chamber of Commerce Outstanding Young Public Safety Officer in California in 1998.

Commander Carroll is married and has three children. In his free time, he coaches a local soccer team and enjoys spending time with his family.

Commander Carroll can be contacted at or (510) 578-4220.


Commander Lawson  Commander Renny Lawson started his law enforcement career with the City of Newark. He was hired as a Police Officer in June 1987 and has since held many special assignments and collateral duties for the Department. Commander Lawson was promoted to Sergeant in September 1999 and Commander in October 2011.

Some of the assignments previously held by Commander Lawson are: SWAT member, SWAT Team Leader, Field Training Officer, Field Training Officer Program Coordinator, Detective, Detective Sergeant, Range Master, and Training Manger.

Commander Lawson has a Bachelor's degree in Liberal Studies from Excelsior College in Albany, NY and is a graduate of the Peace Officers Standards and Training (P.O.S.T.) Supervisory Leadership Institute.

Commander Lawson is currently assigned to Field Operations where he oversees Patrol functions, as well as, the Traffic Division, Evidence Technicians, Field Training Officer program, Canine Program, and the Bicycle Patrol Officer program, to name a few.

Commander Renny Lawson can be contacted at or (510) 578-4975.


  Lieutenant Jonathan Arguello

Lieutenant Jonathan Arguello can be contacted at or (510) 578-4375.


  Lieutenant Chomnan Loth was hired as a Police Officer for the City of Newark in 2002.  During his time as an officer, Lt. Loth worked in Patrol and as a Detective with the Gang Violence Suppression Task Force and the Major Crimes Task Force.  During his time in the task force, Lt. Loth specialized in gang enforcement and investigations.  Lt. Loth is a court recognized expert in the area of gangs and has testified numerous times as an expert in Alameda and San Mateo County Superior Courts.  Lt. Loth also worked as a Field Training Officer, Defensive Tactics Instructor, Chemical Agent Instructor, Acitve-Shooter Instructor, and as a member of the SWAT and Sniper teams.

Lt. Loth was promoted to Police Sergeant in 2011, where he worked as a Patrol Sergeant, Support Services Sergeant, and Special Enforcement Team Sergeant.

Lt. Loth was promoted to Lieutenant in 2014, where he is currently serving as the Operations Lieutenant overseeing Patrol, the K9 Program, Special Enforcement Team, Major Crimes Task Force, and SWAT.

Lt. Loth has a diploma with honors and received a scholarship from Milpitas High School.  He has an Associate of Arts in Liberal Arts and an Associate of Science in Criminal Justice degrees from Ohlone College, a Bachelor of Science degree in Occupational Studies and Masters of Science degree in Emergency Services Adminisration (Summa Cum Laude) from California State University Long Beach. In 2014, Lt. Loth earned his Doctor of Business Administration (Magna Cum Laude) degree from California Southern University.  Lt. Loth is a member of The Honor Society of Phi Kappa Phi, which is the nation’s largest, oldest, and most selective collegiate honor society founded in 1889, where memberships are by invitation only from the President of the university's chapter. 

Lieutenant Chomnan Loth can be contacted at or (510) 578-4946.