Mercer County Sheriff's Office - Jack Kemler, Sheriff

09/12/2026

Today, September 12, is National Police Women's Day. This day recognizes the many contributions and achievements of women in law enforcement.

We honor the many women of the Mercer County Sheriff’s Office who paved the way for future generations of officers. Their courage, leadership, and dedication to serve our communities continues to inspire us all.

-Sheriff Jack Kemler

09/04/2026

Labor Day pays tribute to the contributions of our nation’s workforce and marks the unofficial end of summer. Mercer County’s roadways and recreation areas will be busy, as nearly everyone will try to be out and about with family and friends.

You and your family deserve to enjoy the long weekend, relax, and get some fresh air as the summer slowly but surely comes to a close.

However, always be mindful of sudden changes in local weather forecasts and outdoor conditions. Always follow the rules of the road:
• Be well rested and alert when driving long distances.
• Use your seat belts.
• Obey speed limits.
• Don’t drink and drive.

Have a safe and happy Labor Day weekend, everyone!

--Sheriff Jack Kemler

09/03/2026

MERCER COUNTY SHERIFF TO HOLD NATIONAL CHILD PASSENGER SAFETY WEEK EVENT TO KEEP CHILDREN SAFE IN VEHICLES ON - SEPTEMBER 24

Mercer County Sheriff Jack Kemler announced that his office will hold a child car seat checkup event during National Child Passenger Safety Week. The event will be held on Thursday, September 24, from 5:00 p.m. to 8:00 p.m. in the parking lot across from the Mercer County Administration Building, 640 South Broad Street in Trenton.

The Sheriff’s Office and the National Highway Traffic Safety Administration (NHTSA) are working together to help parents, grandparents, and caregivers keep children safe while traveling in a vehicle. The program is made possible by a grant from the NJ Division of Highway Traffic Safety.

At the event, certified technicians will show and answer questions on how to use car and booster seats correctly. They will make sure the seat is installed properly to maximize a child’s safety. Checkups are first-come, first-served. For more details about the Sheriff’s Office Child Seat Program, call 609-209-2880 during business hours.

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09/01/2026

SCHOOL'S OPEN: As your Mercer County Sheriff, I want to remind everyone to be especially careful as the new school year starts. We ask students and parents to stay alert when walking or driving to and from school and to always be mindful of personal and traffic safety.
-Sheriff Jack Kemler

08/21/2026

08/12/2026

KEVIN C. LARKIN 1953 - 2026

Kevin C. Larkin was elected in 2002 as the 45th Sheriff of Mercer County and served notably until 2010. Larkin joined the Sheriff’s Office in 1987. He became Detective Sergeant in 1993 and was promoted to Chief Warrant Officer in March 2000. As Sheriff, he pioneered Project Lifesaver, which distributed free tracking bracelets to elderly residents with Alzheimer’s and cognitive disabilities. He helped establish the Mercer County Police Academy, fostered Mercer’s Most Wanted to local media outlets, emphasized K-9 patrols, and advocated gun safety. He was dedicated to law enforcement and held a deep personal commitment to the community — a legacy that continues to inspire all he served.

07/28/2026

MARK YOUR FAMILY CALENDAR: NATIONAL NIGHT OUT IS NEXT TUESDAY, AUGUST 4th

The Mercer County Sheriff's Office is proud to participate in the many National Night Out events being held throughout our area on Tuesday night, August 4th. Now in its 43rd year, National Night Out promotes police-community partnerships, local friendships, and family fun. It’s a night to renew relationships, promote safety, and strengthen our community’s neighborhoods.

Events planned throughout the many towns in our area, will promote increased awareness on helpful programs, such as, drug prevention, town watch, neighborhood watch, K-9 demonstrations, personal and family safety, and basic crime prevention measures.

Check your local police department's social media or their website for a National Night Out event in your community.

-Sheriff Jack Kemler

07/16/2026

Congratulations to WLELOR NICKSON and JACK BARRY, the newest Mercer County Sheriff's Officers, on graduating today from the Mercer County Police Academy. The ceremony in Robbinsville honored 37 graduates from police departments across the region.

Each new officer completed 21 weeks of intensive training, demonstrating dedication and integrity.

On behalf of the Mercer County Sheriff's Office, I congratulate them and thank their families and friends for their support.

-Sheriff Jack Kemler

07/15/2026

SHERIFF JACK KEMLER: TRAGIC HEAT-RELATED DEATHS ARE PREVENTABLE

We are only midway through the summer, and Mercer County and the surrounding region face excessive heat warnings and record- breaking temperatures. Know that during these sweltering days, the inside of a car can act like an oven and very quickly become deadly. So, Sheriff Jack Kemler and the Mercer County Sheriff’s Office are teaming up with the National Highway Traffic Safety Administration to avoid childhood deaths by reminding parents and caregivers not to leave a child in a hot car.

-Sheriff Kemler urges all parents and caregivers to never leave a child unattended in a car — and the same with your pets.

-Make it a habit to always check the back seat before leaving your car. This small step can save lives and prevent tragedies.

-Look again before you lock: Heat-related deaths are preventable. This simple action can make a life-saving difference.

-As the hot summer continues, remember that a car’s interior temperature can become deadly in just minutes.

-Always be mindful of intense summer heat and remember that everyone’s safety comes first.

-Please, check your car’s back seat, and never leave a child behind, even for a few minutes.

-Sheriff Jack Kemler

07/01/2026

The Fourth of July is the summer’s biggest holiday and celebrates our nation’s freedom. This year is extra special because the United States turns 250 years old.

Bet that Mercer County’s roads, parks, and many neighborhoods will be full of families and friends enjoying grilling, swimming, and fireworks. Please remember to stay safe by wearing your seat belt, driving the speed limit, and never drink and drive. As always, please be extra careful around water and use any fireworks safely.

As an added note, when planning any outdoor activities, please take into consideration the excessive heatwave affecting our region and be aware of sudden weather changes throughout this holiday weekend.

Have a happy and safe Fourth of July weekend!

- Sheriff Jack Kemler