Arnold MO Police Department

Arnold MO Police Department Dedicated to ensuring public safety for the City of Arnold, Missouri. The City of Arnold Police Department is dedicated to ensuring public safety.

We're committed to providing quality public service to citizens in accordance with federal, state, and local laws, and with a commitment to professionalism, fairness, compassion, efficiency, and effectiveness.

Arrest and charges following an investigation into a report and allegations of a female being unlawfully recorded while ...
09/12/2026

Arrest and charges following an investigation into a report and allegations of a female being unlawfully recorded while in a vulnerable state.

50-year-old Erik D. Nilsen of Arnold is charged with eight counts each of Felony Invasion of Privacy for allegedly photographing and recording individuals while they were tanning at a local business. The investigation, which began when the incident was reported on July 6th 2026, led to detectives uncovering evidence Nilsen had been engaging in the unlawful recording dating back to 2021. Detectives, through extensive analysis of digital forensic data, were able to identify multiple victims who were unaware they had been unlawfully recorded.

On 9/8/2026 the Jefferson County Prosecuting Attorney’s Office obtained an arrest warrant for Nilsen. On 9/10/2026 Arnold Police Officers and Detectives arrested Nilsen who was being held on $50,000 bond.

The Arnold Police Department is actively working to ensure all potential victims are identified and justice can be sought.

We would like to thank the Jefferson County Prosecuting Attorney’s Office for their assistance in this case.

Twenty-five years.This morning, members of our Police Department joined our community at the Arnold Recreation Center to...
09/11/2026

Twenty-five years.

This morning, members of our Police Department joined our community at the Arnold Recreation Center to remember the lives lost on September 11, 2001.

We are grateful to the staff of the Arnold Recreation Center for organizing this ceremony, and for making sure that a quarter century later, this community still stops to remember.

Thank you to Mayor Moritz and our elected officials for standing with us. To the veterans in attendance — many of whom answered the call in the years that followed — thank you for your service. And to the citizens who came out this morning, thank you for making sure these names are not forgotten.

We were honored to stand alongside the ROCK Community Fire Protection District. For those of us in public safety, this day belongs to the fire service in a way few others do. Twenty-five years later, we remember their brothers.

To those we lost, and to the families who carry it still — we will never forget

Twenty-Five Years. We Still Remember.On the morning of September 11, 2001, 2,977 innocent people lost their lives in the...
09/11/2026

Twenty-Five Years. We Still Remember.

On the morning of September 11, 2001, 2,977 innocent people lost their lives in the deadliest terrorist attack ever carried out on American soil.

Among them were 343 firefighters, 71 law enforcement officers, and 8 paramedics who ran toward the danger everyone else was running from. They did it because that is the job, and because there were people inside who needed them.

Twenty-five years later, their courage continues to set the standard for all first responders. It is in the oath our officers take. It is in the decision to answer every call, no matter what is waiting on the other side of the door.

Today we ask you to pause with us. Remember the 2,977. Remember the families who have carried this loss for a quarter of a century.

We will never forget.
September 11, 2001 – September 11, 2026

It may be warm outside but we can guarantee it’s cool inside Schnucks at 1253 Water Tower Place in Arnold! Come by and s...
09/04/2026

It may be warm outside but we can guarantee it’s cool inside Schnucks at 1253 Water Tower Place in Arnold! Come by and see us until 8:00 tonight, and from 8:00 in the morning until 2:00 in the afternoon tomorrow and Sunday. We’re supporting The Missouri Special Olympics and the inspiring athletes who compete each year, and we would love for you to continue your generosity and support by picking up a hat, shirt, or raffle ticket. The shirts range in price from $15.00 to $20.00 and are available in sizes from small to 4XL, and the hats are $20.00. So if you would like to be as cool as our Olympians, please stop by and see us this weekend!

Arrest and Charges Following a Series of Property Damage Incidents in Arnold52-year-old Joseph M. Patzius of Arnold is c...
08/28/2026

Arrest and Charges Following a Series of Property Damage Incidents in Arnold

52-year-old Joseph M. Patzius of Arnold is charged with two counts each of Property Damage 1st Degree and Armed Criminal Action, along with one count of Possession of a Controlled Substance, for allegedly damaging the windows of multiple Arnold businesses.

Patzius was arrested on August 27th and is now in jail without bond. No one was injured, though employees were inside one of the businesses at the time of the damage.

This arrest was the result of a true team effort between the Arnold Police Department Detective Bureau, Business Resource Officers, School Resource Officers, and Road Patrol Officers.

The Arnold Police Department is continuing to actively investigate multiple other similar property damage incidents reported in the Arnold area since July 29th.

We would like to thank the Jefferson County Prosecuting Attorney’s Office for their quick work to obtain the arrest warrant.

When our department started a Law Enforcement Exploring Program three years ago, we knew that we would be privileged to ...
08/20/2026

When our department started a Law Enforcement Exploring Program three years ago, we knew that we would be privileged to have some incredible young adults start that journey with us. Sam Menke is one of those individuals. Sam has been with us from the inception of the program, and somehow also found time to complete the Jefferson County Emergency Services Fire Academy AND receive his EMT license and complete paramedic school! If ever there was a young man who embodies public service and the desire to give back to his community, it is most certainly Sam. Thanks for the journey sir, we’re honored to have had you in our program!

🚔 2026 Arnold Junior Police Summer Camp — A Huge Success! This year's Junior Police Summer Camp brought together 45 kids...
07/30/2026

🚔 2026 Arnold Junior Police Summer Camp — A Huge Success!

This year's Junior Police Summer Camp brought together 45 kids ages 9–13 from Arnold and surrounding communities for four action-packed days hosted at the Fox High School! Campers got hands-on experience with public safety and built positive relationships with local law enforcement. They toured police vehicles, spoke with real 911 dispatchers during simulated emergencies, met the Detective Bureau, trained with firefighters at Rock Community Fire Protection District, and learned about safe choices from MADD and the FBI. The week even included a "trip to jail" at the Arnold Police Department and a visit to explore SWAT vehicles, ambulances, and emergency medical training at the new Jefferson County Sheriff's Office and ROCK Township Ambulance District substation in Imperial.

Day four was all about celebrating! Campers went roller skating at Rock 'N Roll Arena, enjoyed lunch at Wesley Rogers Steakhouse, and closed out the week bowling at Imperial Bowl — complete with complimentary frozen custard from Culver's, generously donated by the Bommarito Automotive Group. A big thank you to all our community partners who made this year unforgettable! 👮‍♂️👏

Congratulations to Corporal Brett Ackermann on completing the FBI LEEDA Trilogy!Over the past several months, Corporal A...
07/20/2026

Congratulations to Corporal Brett Ackermann on completing the FBI LEEDA Trilogy!

Over the past several months, Corporal Ackermann successfully completed the FBI Law Enforcement Executive Development Association (LEEDA) Trilogy—an intensive, nationally respected leadership development series for law enforcement professionals.

The Trilogy includes three separate courses: the Supervisor Leadership Institute, the Command Leadership Institute, and the Executive Leadership Institute. Together, these programs provide comprehensive instruction in modern leadership principles, ethical decision‑making, communication strategies, and organizational management.

Officers who complete the series gain advanced tools to lead effectively, navigate complex challenges, and strengthen their agencies through progressive leadership practices.

We are proud of Corporal Ackermann’s dedication to professional growth and his commitment to bringing these enhanced leadership skills back to our organization.

His achievement represents an investment not only in his future, but in the future of our department and the community we serve.

Great job, Corporal Ackermann! Your continued effort and leadership make a difference.

Beat the summer heat with FREE popsicles! The Arnold Police Department and the APOA will be handing out free popsicles e...
06/08/2026

Beat the summer heat with FREE popsicles!

The Arnold Police Department and the APOA will be handing out free popsicles every Wednesday from 10:30 AM to Noon all of June and July.

Stop by, cool off, and say hello — Everyone is welcome!

Last week Law Enforcement Officers across Jefferson County Missouri supported the Torch Run for Special Olympics. Office...
06/02/2026

Last week Law Enforcement Officers across Jefferson County Missouri supported the Torch Run for Special Olympics. Officer Humphrey, School Resource Officer Wilson, and Major Wooldridge represented the Arnold Police Department by running over 3 miles along Jeffco Blvd with the torch. Our Department, along with multiple other local agencies, assisted with traffic control and are proud to support such an incredible organization. Thank You to everyone who has donated and offered support! Learn more about the Law Enforcement Torch Run by visiting https://www.letr.org/

Address

2101 Jeffco Boulevard
Arnold, MO
63010

Telephone

+16362962222

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