Police Department


William Dwyer was re-appointed Commissioner of the Warren Police Department on August 14, 2017. He previously served as the Warren Police Commissioner from April 2008 until December 2010. He also was elected as Oakland County Commissioner for the 14th District on November 2, 2010 and started his first two-year term on January 1, 2011. In December of 2018 he retired after his fourth two-year term as an Oakland County Commissioner.

Prior to his current assignment in Warren, the Commissioner served 23 years with the Farmington Hills Police Department as Police Chief. Before Farmington Hills, he served 23 years with the Detroit Police Department, where he held the position of Commander of Chief’s Staff. Prior to that, he was in charge of the Narcotics Division for seven years, having risen through the ranks from the position of Patrol Officer. Commissioner Dwyer holds a Bachelor of Science degree from Mercy College and a Master’s degree in Criminal Justice from Wayne State University. He is also a graduate of the 97th session of the FBI National Academy.

He is an active member of the International Association of Chiefs of Police and is a past president of the Michigan Association of Chiefs of Police, in addition to having served as president of the Oakland County Chief’s Association and the Southeastern Michigan Chiefs of Police Association. Commissioner Dwyer has served on the Advisory Board of Directors for the Oakland County Narcotics Enforcement Team since 1987. He is the past chairman of the High-Intensity Drug Trafficking Area (HIDTA) and served as vicechair in September 2003. In 2001, he was appointed to the Federal Anti-Terrorism Task Force and is still presently a member. He was appointed by the Governor to serve as a member of the Governor’s Cabinet Council on Crime in 1989 and serves on the Commission on Children, Youth, and Families. He is on the Farmington Hills/Farmington Community Foundation and also serves as a member of the President’s Criminal Justice Advisory Committee of Rochester College and a member of the executive committee of Michigan Citizens for Handgun Control. He served as chairperson of the Oakland County CLEMIS Advisory Committee for 11 years.

In 2004, he was appointed by Governor Granholm to the Michigan Homeland Security Advisory Council. Governor Granholm appointed him to the Michigan Public Safety Communications System Advisory Board in April 2005 and re-appointed him in April 2006. He is a member of the Hundred Club of Detroit and serves as president of the Farmington Hills Benevolent Association. In 2005, he was awarded the Presidential Medal from the Michigan Association of Chiefs of Police. Commissioner Dwyer was appointed to the State Bar of Michigan Custodial Interrogation Recording Task Force in 2006 and became a member of the Community Outreach Impact Committee. In 2009, Commissioner Dwyer received the Collegian Award from Wayne State University. In 2010, Crime Stoppers of Michigan named him the Police Executive of the Year. The Commissioner is also an active member of both the Optimist Club and the Rotary Club.

Commissioner Dwyer is a graduate of L’Anse Creuse High School in Mt. Clemens. He and his wife Doris have two grown sons.

Most recently in 2019, Commissioner Dwyer was one of the founding members of the newly created Macomb County/Federal Task Force to fight against illegal Narcotic, otherwise known as F.A.N.T.O.M.

The Warren Michigan Police Department is now accepting applications for Police Officers

The City of Warren is now recruiting for Police Officer. To apply and be on the eligibility list you must meet the minimum requirements and complete the application process as indicated here.

Click It or Ticket

Click It or Ticket enforcement campaign starts Oct. 17
Law enforcement looking for unbuckled motorists; encourages safe driving
The campaign runs Oct. 17-31.

Read the full press release here.


Police Department Phone Numbers
Police Department (non-emergency) (586) 574-4700
Office of the Commissioner (586) 574-4803
Criminal Investigations (586) 574-4810
Family Investigations (586) 574-4762
Special Investigation (Drug Unit) (586) 574-4837
Records Dept. (586) 574-4760
Animal Control (586) 574-4806
Traffic/Accident Investigation (586) 574-4870
Detention/Prisoner Information (586) 574-4844


Animal Control

Animal Control: (586) 574-4806

Note: Animals recovered by the city of Warren are relocated to an animal shelter in Mount Clemens. If you’re looking for a lost pet you feel may have been collected by Animal Control, contact Animal Control immediately at 586-574-4806.

Click here for lost and found pet notices.

Click here to post a lost or found pet notice.

Command Staff

Robert AhernsDeputy Commissioner Robert Ahrens 
D.C. Robert Ahrens has been with the Warren Police Department since January of 1994. He grew up in Warren and attended De La Salle Collegiate High School. D.C. Ahrens received a Bachelor’s degree in Criminal Justice from Michigan State University and later graduated from the Northwestern University School of Police Staff and Command. D.C. Ahrens has previously commanded the Patrol Services Bureau, a Patrol Platoon, the Narcotics Unit, the Special Operations Unit and the Detective Bureau. D.C. Ahrens currently commands the Warren Police Department’s Administrative Services Bureau.

Larry CortlandCaptain Cortland R. Larry -Patrol Services Bureau
Captain Cortland Larry has been with the Warren Police Department Since January 11, 1995. Captain Larry was born and raised in the City of Warren and graduated from Sterling Heights High School. Captain Larry has a Bachelor’s Degree in Criminal Justice from Ferris State University. Before being appointed to his current position, Captain Larry has been assigned to the Road Patrol Division, Special Investigations Division, Special Response Team, Special Operations Unit, Jail Division, and the Training Division. Captain Larry currently oversees the Warren Police Department’s Road Patrol Services Bureau.

Christian BonettCaptain Christian Bonett
Captain Christian Bonett has been with the Warren Police Department since August of 1998. Captain Bonett was born and raised in Detroit, and later obtained a Bachelor’s degree from Northern Michigan University. He is also a graduate of the Northwestern school of police staff and command. Captain Bonett currently oversees the department’s fiscal and budgetary issues, computer services, records division, dispatch services and personnel, training division, and emergency management. Previously, Captain Bonett was the executive Lieutenant of both investigative services, and the patrol division

Concealed Pistol License Information

Michigan Concealed Pistol License application forms are available via the Michigan State Police and the Macomb County websites. Printed copies are no longer supplied by the City of Warren.

C.P.L. Applicants who are City of Warren residents may have the fingerprinting process completed by the City of Warren Police Department Identification Division. Applicants must present their ID and the LIVESCAN request form produced by the Macomb County Clerk’s Office. The fee for C.P.L. fingerprinting is $15.00 (cash or check only). Fingerprinting is performed Monday – Friday, 8:30am-11:30am and 1:30pm-3:30pm

For information on gun registration in the City of Warren, please call (586) 574-4751 during normal business hours.

C.P.L. licenses are NOT issued by the city.

For further information from Macomb County CLICK HERE.

For information from the State of Michigan CLICK HERE.

Crime Stoppers
Be a Home Town Hero
Help out your community by providing information that will help solve a crime by calling the Warren Police or contacting Crime stoppers. The mission of Crime Stoppers is to empower people to make their neighborhoods safer. This is done by publicizing crimes that need solving and broadcasting information about dangerous fugitives, so that citizens can provide information anonymously and receive a reward up to $1000, if there’s an arrest based on their information. In 2007, more than 2900 tips were received from all areas of Michigan and over $55,000 were paid in rewards leading to arrests and closed cases.
Police Explorer Program

The Exploring program is a career orientation program. Exploring posts are sponsored by local businesses offering interested young adults the opportunity to investigate career opportunities before committing to a chosen profession. The Exploring program is open to all young adults who are at least 14 years of age and are not yet 21 years of age, live in or around the City of Warren and have no criminal record. Parental approval is required for all persons under 18 years of age. For more information please visit the Explorer website: warrenexplorers.org

Traffic Reports

Accident reports must be obtained online at the following website: clemis.org

Warren PAL

PAL is a youth crime prevention program that utilizes educational, athletic and recreational activities to create trust and understanding between police officers and youth. It is based on the conviction that young people if they are reached early enough, can develop strong positive attitudes towards police officers in their journey through life toward the goal of maturity and good citizenship.

The PAL program brings youth under the supervision and positive influence of a law enforcement agency and expands public awareness about the role of a police officer and the reinforcement of the responsible values and attitudes instilled in young people by their parents. Studies have shown that if a young person respects a police officer on the ball field, gym or classroom, the youth will likely come to respect the laws that police officers enforce. Such respect is beneficial to the youth, the police officer, the neighborhood and the business community.

Our website is designed to educate the community on the advantage PAL has on our community as well as recruit new members to our program and provide as a resource to current PAL members.

Our programs are open to all Warren Residents (programs have age restrictions, see the sports page for more information).

For more information on Warren PAL, click here http://warrenpal.org/