Anoka County Sheriff's Office

Anoka County Sheriff's Office To Protect & Serve the Community in a Manner that Preserves the Public Trust. Serving the citizens of Anoka County for over 150 years.

The Andover office will be closed on Memorial Day as we remember those who have served, making the ultimate sacrifice.If...
05/25/2026

The Andover office will be closed on Memorial Day as we remember those who have served, making the ultimate sacrifice.

If you need emergency assistance during this time, please call 911.

We hope everyone has a safe and meaningful holiday.

The ACSO Explorers rolled up their sleeves for a roadway cleanup along Crosstown Blvd in the City of Andover!These young...
05/21/2026

The ACSO Explorers rolled up their sleeves for a roadway cleanup along Crosstown Blvd in the City of Andover!

These young leaders continue to show their commitment to service, teamwork, and making our community a cleaner, safer place for everyone. Huge thanks to our Explorers for their hard work and positive impact—your dedication truly makes a difference!

Side note: Please don’t throw your trash out the window, and secure any loads you are traveling with.

We are proud to share that Detention Deputy Richard  Legler has been honored posthumously with his name added to the Nat...
05/19/2026

We are proud to share that Detention Deputy Richard Legler has been honored posthumously with his name added to the National Law Enforcement Officers Memorial Wall in Washington, DC this year.

Detention Deputy Legler, who bravely served with the Anoka County Sheriff’s Office, was tragically shot and killed on August 9, 1986—a profound loss that still resonates today. Legler was very likely targeted because of the uniform he was wearing while driving to work.

This significant recognition took place during National Police Week. Sgt. Lindberg and Sgt. Ninow from the Anoka County Sheriff’s Office Honor Guard attended the ceremony in Washington, DC to pay their respects and represent our community alongside his family and fellow first responders.

We’re deeply honored that Detention Deputy Legler’s sacrifice is now permanently commemorated at the nation’s memorial for fallen officers. His name on the wall ensures his dedication and courage will never be forgotten.

Today is National Peace Officers Memorial Day, where we remember all the fallen guardians of peace. In Anoka County, sev...
05/15/2026

Today is National Peace Officers Memorial Day, where we remember all the fallen guardians of peace. In Anoka County, seven line of duty deaths have represented the Anoka County Sheriff’s Office, Anoka Police Department, Columbia Heights Police Department, Lino Lakes Police Department, Minnesota State Patrol, and St. Francis Police Department.

Deputy Ernest Zettergren – EOW December 7, 1953
Deputy Ernest Zettergren was shot and killed when he interrupted a burglary at a local tavern. Zettergren had noticed that a window was broken out at the business and pulled up behind a car in front of it. He radioed the license plate when the suspect came out and approached the vehicle. The man shot Deputy Zettergren twice and fled with the deputy's weapon and clipboard. The man was arrested later in the morning and confessed to the murder. He was subsequently sentenced to life in prison. His wife and six children survived Deputy Zettergren.

Detention Deputy Richard Legler – EOW August 9, 1986
During the early morning hours on Saturday, August 9, 1986, Detention Deputy Richard Legler and fellow Detention Deputy Anthony Hesch, were on their way to work at the jail. An unknown dark-colored car pulled alongside Legler’s vehicle and fired a shot. The shot from the fleeing car entered Legler’s driver’s side window and struck him in the left arm. Legler struggled to pull the vehicle over to the right side of the road. The round struck his left arm just behind his uniform patch, ultimately piercing his left lung.

The suspect was later found deceased from a self-inflicted gunshot wound. It is believed that the suspect may have seen the jail uniforms worn by Legler and Hesch, and seeing the uniformed men could have triggered the shooting as no other cars had been reported shot at that morning. At the time of his death, Detention Deputy Richard Legler was 38 years old and had worked for the Anoka County Sheriff’s Office for approximately three years.

Come join us at the Andover Dunkin’ TODAY until 11am!  We’re raising money for Special Olympics MN and you can get a fre...
05/15/2026

Come join us at the Andover Dunkin’ TODAY until 11am! We’re raising money for Special Olympics MN and you can get a free donut with a donation.

Today we recognize the unsolved murder of Glenn Theodore Patterson, age 35, W/M, on May 14, 1992.Case Number: 92-068499M...
05/14/2026

Today we recognize the unsolved murder of Glenn Theodore Patterson, age 35, W/M, on May 14, 1992.

Case Number: 92-068499

Mr. Patterson was located in a vehicle in the parking lot of Cross of Hope Church in Ramsey. Police were originally called to assist with suspicious vehicle that was occupied. The cause of death was determined to be trauma to the head. No witnesses or suspect information at this time.

Do you have information about this investigation? You don't have to tell us who you are, but please tell us what you know. Email your tip to [email protected].

If you have a picture of Mr. Patterson that you'd be willing to share with our office for public use, please email it to [email protected].

Learn more about the other unsolved homicide cold cases at https://www.anokacountymn.gov/4501/Cold-Case-Homicide-Unit.

Join us at the Andover Dunkin’ on Friday, May 15th from 6:00–11:00 AM! Grab a coffee and donut while supporting Special ...
05/13/2026

Join us at the Andover Dunkin’ on Friday, May 15th from 6:00–11:00 AM! Grab a coffee and donut while supporting Special Olympics Minnesota.

ACSO staff and some amazing Special Olympians will be there to show their appreciation. Stop by, say hello, and help make a difference in our community!

The following individuals have been taken into custody pending formal charges in relation to the May 9, 2026, shooting t...
05/12/2026

The following individuals have been taken into custody pending formal charges in relation to the May 9, 2026, shooting that occurred in the City of Fridley.

• Cordaryle Frank-Allen Frost, age 38, of Columbia Heights, MN
• Cynthia Victoria Frost, age 37, of Columbia Heights, MN

This incident remains under investigation by the City of Fridley Public Safety, Minnesota State Patrol, and Anoka County Sheriff’s Office. No further information will be released at this time.

05/11/2026

This National Police Week, we proudly honor the dedication, professionalism, and compassion of every deputy at the Anoka County Sheriff’s Office.

From patrol to investigations to court security, our deputies serve with courage and integrity every single day. They respond to calls at all hours, support families during their most difficult moments, uncover the truth through meticulous investigative work, and ensure our courtrooms remain safe and accessible for everyone who enters them.

Their commitment goes far beyond the uniform. It’s reflected in the quiet acts of service, the careful attention to detail in complex cases, and the steady presence they bring to our justice system.

To all our deputies:
Thank you for protecting our community.
Thank you for your dedication to seeking truth and justice.
Thank you for the heart you bring to this work.

We appreciate you—not just this week, but every day. 👏💙

On May 9, 2026, at approximately 9:03 P.M., the City of Fridley Public Safety, Columbia Heights Police Department, Minne...
05/10/2026

On May 9, 2026, at approximately 9:03 P.M., the City of Fridley Public Safety, Columbia Heights Police Department, Minnesota State Patrol, and Allina EMS, responded to the area of Interstate 694 and University Ave NE in the City of Fridley on the report of a shooting.

Indications show that an adult female driving a SUV was shot by an individual in another motor vehicle while driving northbound on University Ave NE. The motor vehicle left the roadway before coming to a stop near the Interstate 694 ramp. The female was transported to a local hospital in critical, but stable condition. A juvenile female also in the vehicle was not injured. No arrests have been made and anyone with information about this incident is encouraged to contact Anoka County Non-Emergency Dispatch at 763-427-1212.

This incident is under investigation by the Fridley Police Department, Minnesota State Patrol, and Anoka County Sheriff’s Office. No further information will be released at this time.

Address

13301 Hanson Boulevard NW
Andover, MN
55304

Opening Hours

Monday 8am - 4:30pm
Tuesday 8am - 4:30pm
Wednesday 8am - 4:30pm
Thursday 8am - 4:30pm
Friday 8am - 4:30pm

Telephone

+17633245000

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