Town of Trenton Police Department

01/23/2026

Friends, with the weather being so cold, we encourage everyone to use caution while traveling, being outside and heating your homes. Dress warm, put extra blankets and winter gear in your car. Make sure your gas tanks are full and cell phones charged. Happy frigid Friday!

12/16/2025

On 12-15-2025 at around 12:15pm, Chief Mammen responded to a vehicle crash on Wallace Lake Road near N. Church Road. The operator of the vehicle was driving too fast for road conditions and lost control of the vehicle. Thankfully there were no reported injuries.

We want to remind everyone to SLOW DOWN!! and drive safe!

10/25/2025

Today you some may have seen us driving in the parking lot of the town hall with our lights on. We were in training for pursuit and safe driving. We provide high quality in-house training for our staff with in-house on staff state certified instructors.

10/23/2025

Residential House Fire 4900 Block Highway M

For Immediate Release:

The Town of Trenton Police Department, under the authority of Captain Joseph Cashin, is reporting a residential House fire that occurred in the 4900 Block of Highway M on October 22, 2025, at around 1:00pm. Emergency responders arrived promptly at the scene and ensured the safety of residents and property. No injuries have been reported.

After a thorough investigation, authorities have determined that there is nothing suspicious regarding the cause of the fire. The incident was traced back to a wood burning stove in a garage area, no criminal activity is suspected at this time
We would like to acknowledge our law enforcement and fire partners from the Washington County Sheriff’s Department, Newburg FD, Jackson FD / EMS, Slinger FD, City of West Bend FD.
The Town of Trenton Police Department would like to remind residents to exercise caution when using wood burning stoves and to follow all recommended safety guidelines.

For further information, please contact Chief of Police Andrew Mammen at [email protected]

10/13/2025

Late last week, Chief Mammen responded to Decorah Road near Equipment Rentals for a vehicle that struck a home. Luckily there were only minor injuries and limited property damage.

The investigation showed that the driver was having a medical emergency. No impairment was found or suspected.

09/06/2025

School is back in session!!

Here is another example of unsafe driving. We received a complaint about a school bus violation on Friday morning. A concerned citizen captured compelling video footage of a driver failing to stop for a school bus. The lights were on and both the stop arm and crossing bar were extended.

Captain Cashin was able to locate the driver and made phone contact. The driver admitted to the violation. A citation was issued.

We want every one to have a safe, happy and healthy new school year!

08/25/2025

Ridiculous Driving. Thanks to our friends at the Winnebago County, Wisconsin Sheriff’s Office for keeping our roads safe!!

Last night around 9pm one of our Deputies was monitoring traffic on I-41 S near Nee-Vin Rd and observed this Mustang speeding; yep, that says 143 MPH — more than double the posted 70 mph speed limit for the interstate.

Have you ever wondered what citations for reckless driving and speeding would total in this circumstance? It’s $1,515.00.

Dangerous. Dumb. Just plain ridiculous. Period.

08/16/2025

****SCAM****

We just wanted to make everyone aware of a new scam that's been circulating.

Captain Cashin received the attached screen-shot as a text message. The scammers are pretending to be with the WI DMV, claiming that the Captain had an outstanding traffic ticket under a bogus administrative code.

This is nothing but a phishing scam. As you read this bogus text, put your boots on because it gets deep. We encourage you to never answer text messages like this or click on the link. For safety and security we blurred the link that was provided by the scammers.

Be aware and stay alert, if it seems like a scam it probably is!!

08/12/2025

***SLOW NO WAKE on WALLACE LAKE***

Due to the unprecedented rain fall, the Town of Trenton has issued an Emergency Declaration order for SLOW NO WAKE on Wallace Lake.

This order will be until further notice. The water levels on the lake are very high, and this temporary declaration is necessary to preserve the integrity of the lake, minimize property damage on the shorelines and ensure safety for all.

We will continue to monitor water levels and remove the restriction ASAP!!!

We appreciate your cooperation and commitment to making Trenton the bight community that it is.

Authority: Chief Mammen, Capitan Cashin

08/02/2025

📱📱Stay off the Phone📱📱

This morning, Captain Cashin observed a motorist traveling east on Highway 33 near the golf course. The driver was clearly looking down and not watching the road. The driver then swerved, correcting himself and continuing on.

Captain Cashin caught up with the vehicle just east of Newburg and watched as the driver drove over the double yellow centerline into oncoming traffic lanes. When he was stopped, the driver admitted he was texting on his phone and not paying attention to the road. The motorist was upset with the Captain for citations being issued, stating that he was halfway through his points on his license. The driver was encouraged to come to court.

The Trenton Police Department encourages everyone to put devices down when driving and focus on the road. SAFETY FIRST!!

07/12/2025

This morning, Captain Cashin was on patrol on Decorah Road near Fellenz Woods Park when he spotted this little guy trying to cross the road. With a little help, our new friend safely crossed!! Big or small, we support protecting our wildlife!

07/03/2025

PRESS RELEASE

Personal Injury Traffic Crash

Authority: Captain Joseph Cashin

The Ozaukee County Sheriff’s Department is currently investigating a traffic crash involving Trenton Police Chief Mammen. The crash occurred yesterday 07-02-2025 in the Town of Cedarburg near the intersection of Highway Y and Sherman Road around 2:30. P.M.

Chief Mammen had just completed his shift in Trenton and was on his way to his private residence, when a vehicle pulled out in front of him causing a head on collision. Chief Mammen and other parties involved, thankfully, sustained non-life-threatening injuries.

The crash and cause remains under investigation by Ozaukee County Sheriff’s Department.

The Trenton Police Department would like to thank all first responders who assisted with this crash.