Screenshot 2025-09-27 at 8.39.48 AM

Manhattan Police Department Promotes Garrison to Commander, Diaz to Sergeant

Spread the love

Article Summary: The Manhattan Police Department solidified its command structure with the promotions of William Garrison to the rank of Commander and Bryan Diaz to Sergeant, who were both officially sworn in at the village board meeting.

Manhattan Police Promotions Key Points:

  • Commander William Garrison is a 20-year law enforcement veteran and a graduate of Northwestern’s prestigious School of Police Staff and Command.

  • Sergeant Bryan Diaz brings over nine years of law enforcement experience to his new leadership role.

  • Both officers were sworn in by Mayor Mike Adrieansen in a ceremony attended by their families and fellow officers.

MANHATTAN – The Manhattan Police Department celebrated the promotion of two of its officers Tuesday night, filling key leadership roles within the department. William Garrison was sworn in as Commander and Bryan Diaz was sworn in as Sergeant before the Village Board and a room full of family and colleagues.

Mayor Mike Adrieansen administered the oath of office to both men, highlighting their extensive experience. Garrison, a 20-year veteran, is a graduate of the Northwestern Center for Public Safety’s School of Police Staff and Command. Diaz has over nine years of law enforcement experience, with expertise in truck enforcement and field training.

“I’m humbled and appreciative of the chief and the police department supporting me in this role, and I look forward to doing some good things,” Commander Garrison said after being sworn in.

Sergeant Diaz also thanked the village and his department. “It’s been a great move coming to Manhattan,” he said. “From the citizens, the trustees and the police department, everyone’s had my back and welcomed me. So, I appreciate everything you guys have done for me.”

The promotions reaffirm the village’s commitment to public safety by completing the command structure within the police department.

Leave a Comment





Latest News Stories

Will County Board Graphic.01

Frankfort Turns to County for Wildlife & Dangerous Animal Control

Will County Board Meeting | November 2025 Article Summary: The Village of Frankfort has entered into a two-year agreement with Will County Animal Protection Services to handle calls regarding bats...
Illinois rejects federal ‘no tax on tips’ rule, keeps state tax on tipped income

Illinois rejects federal ‘no tax on tips’ rule, keeps state tax on tipped income

By Catrina Barker | The Center Square contributorThe Center Square (The Center Square) – Illinois is not adopting the new federal “no tax on tips” provision, meaning tipped workers in...
joliet junior college foundation

JJC Foundation Director Kristin Mulvey to Retire After 25 Years of Transformative Leadership

Joliet Junior College Meeting | November 12, 2025 Article Summary:Kristin Mulvey, the longtime Executive Director of Institutional Advancement and the JJC Foundation, was honored by the Board of Trustees as...
Attack foiled in Ft. Worth day before National Guard troops shot in WDC

Attack foiled in Ft. Worth day before National Guard troops shot in WDC

By Bethany BlankleyThe Center Square Another Afghan-related terrorist attack was foiled one day before two National Guardsmen were shot in Washington, D.C., federal authorities said Saturday. The alleged perpetrators were...
Hundreds of flights canceled in Chicago as winter storm wreaks havoc

Hundreds of flights canceled in Chicago as winter storm wreaks havoc

By Dan McCaleb | The Center SquareThe Center Square (The Center Square) – More than 1,000 flights were canceled or delayed at Chicago's airports Saturday as a winter storm threatened...
manhattan park district graphic.2

Manhattan Park District Explores Pickleball Expansion at Round Barn Farm

Manhattan Park Board Meeting | October 9, 2025 Article Summary:The Manhattan Park Board is considering adding more pickleball courts at Round Barn Farm to meet current demand, but a final...
Manhattan Township

Baker Road Bridge Projected to Open Ahead of Schedule

Manhattan Township Board Meeting | Oct. 14, 2025 Article Summary: The Manhattan Township Highway Commissioner announced that the Baker Road Bridge is expected to open on October 31. The Road District...
under armor logo

Lincoln-Way 210 Switches to Under Armour for Athletic Apparel

Lincoln-Way Community High School District 210 Meeting | November 20, 2025 Article Summary: The Lincoln-Way District 210 Board of Education has approved a new 3.5-year agreement with BSN and Under Armour...
Fiscal Fallout: States continue to increase budgets despite end of COVID emergency

Fiscal Fallout: States continue to increase budgets despite end of COVID emergency

By Arthur KaneThe Center Square States around the country, hooked on billions of federal dollars that flooded in during COVID, don't want the party to end. But the pandemic subsided...
Will County Logo Graphic

Crete “Group Care” Home Approved for Senior Living

Will County Board Meeting | November 2025 Article Summary: The Will County Board unanimously approved a special use permit for a senior group care home in Crete Township. The facility...

WATCH: IL legislator wants more transparency for taxpayer funded credit cards

By Greg Bishop | The Center SquareThe Center Square (The Center Square) – A Democratic state legislator is looking to require more transparency for how local governments in Illinois use...
Colorado lost record $24 million to data scams in 2024

Colorado lost record $24 million to data scams in 2024

By Elyse ApelThe Center Square Colorado residents lost a record high $24 million to personal data scams in 2024, according to a data forensics firm. That was four times the...
Trump vows to pause migration after D.C. shooting

Trump vows to pause migration after D.C. shooting

By Sarah Roderick-FitchThe Center Square President Donald Trump said Thursday he will pause migration from some countries following the shooting of two National Guard members near the White House. The...
Assaults against ICE up 1,153% in 11 months

Assaults against ICE up 1,153% in 11 months

By Bethany BlankleyThe Center Square Assaults against U.S. Immigration and Customs Enforcement officers are up 1,153% in 11 months, according to the U.S. Department of Homeland Security. As ICE officers...
Illinois quick hits: Deer harvest totals; IHSA voting begins

Illinois quick hits: Deer harvest totals; IHSA voting begins

By Jim Talamonti | The Center SquareThe Center Square Deer harvest totals Illinois hunters harvested a preliminary total of 51,409 deer during the first weekend of the state’s firearm deer...