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

Refilling Strategic Petroleum Reserve begins

Refilling Strategic Petroleum Reserve begins

By Alton WallaceThe Center Square About 1 million barrels of crude oil that will go toward replenishing the nation’s Strategic Petroleum Reserve have been purchased, the U.S. Department of Energy...

WATCH: Lawmakers call out Pritzker for lack of transparency with budget cuts

By Jim Talamonti | The Center SquareThe Center Square (The Center Square) – Illinois lawmakers say they are not getting information from Gov. J.B. Pritzker or state agencies about the...
Report: Barriers to social mobility largely manmade

Report: Barriers to social mobility largely manmade

By Tate MillerThe Center Square Authors of a new report on social mobility across the 50 states said that barriers to social mobility are largely “man-made” and can be solved...
Fetterman hospitalized for heart episode

Fetterman hospitalized for heart episode

By Christen SmithThe Center Square Pennsylvania Democratic U.S. Sen. John Fetterman remains under observation at a Pittsburgh-area hospital following a heart episode early Thursday. The senator’s spokesman posted to his...
Federal services to slowly recover following end of government shutdown

Federal services to slowly recover following end of government shutdown

By Thérèse BoudreauxThe Center Square With the longest government shutdown in history finally over, federal agencies are slowly bringing affected services back online and hoping to resume normal operations by...
IL congressman pushes military to accept CLT, experts say it could shape education

IL congressman pushes military to accept CLT, experts say it could shape education

By Catrina Barker contributiorThe Center Square An Illinois congressman is pushing to expand testing options at U.S. service academies, a move experts say could revive academic rigor and expand access...
solar panels photovoltaics in solar farm

New Lenox Solar Farm Gains County Committee Approval with Conditions

Will County Land Use & Development Committee Meeting | November 6, 2025 Article Summary: A 63-acre commercial solar energy facility on Spencer Road in New Lenox Township received a key endorsement...
Will County Board Land Use Committee Graphic.1

Committee Approves Frankfort Township Gaming Bar on Split Vote

Will County Land Use & Development Committee Meeting | November 6, 2025 Article Summary: Despite an objection from Frankfort Township, a proposed video gaming bar on West St. Francis Road is...
Will County Board Land Use Committee Graphic.3

Crete Township Senior Group Home Gets Unanimous Committee Support

Will County Land Use & Development Committee Meeting | November 6, 2025 Article Summary: A proposal to convert a single-family home in Crete Township into a shared living facility for up...
Will County Board Land Use Committee Graphic.4

Beecher-Area Rezoning and Variances Approved to Legalize Structure

Will County Land Use & Development Committee Meeting | November 6, 2025 Article Summary: The Will County Land Use and Development Committee approved a rezoning and two variances for a property...
Will County Board Land Use Committee Graphic.2

Committee Approves Wilton Township Land Division Despite Spot Zoning Concerns

Will County Land Use & Development Committee Meeting | November 6, 2025 Article Summary: The Will County Land Use and Development Committee approved a request to rezone a 1.75-acre parcel in...
MS-13 members prosecuted nationwide for brutal murders, fentanyl trafficking

MS-13 members prosecuted nationwide for brutal murders, fentanyl trafficking

By Bethany BlankleyThe Center Square Federal, state and local law enforcement officers continue to target Mara Salvatrucha (MS-13) U.S.-Salvadoran transnational gang members nationwide. MS-13 was designated as a foreign terrorist...
Illinois, Chicago residents rank high taxes as state’s top issue

Illinois, Chicago residents rank high taxes as state’s top issue

By Glenn Minnis | The Center Square contributorThe Center Square (The Center Square) – With the state now losing a resident to another state every nine minutes and more than...
Jan. 6 panel cost twice previous estimates, hiring TV producers to dramatize attack

Jan. 6 panel cost twice previous estimates, hiring TV producers to dramatize attack

By Mark StricherzThe Center Square The U.S. House select committee that investigated the Jan. 6, 2021, attack on the U.S. Capitol cost almost twice as much as previously reported, including...
Illinois quick hits: Illinois House members vote along party lines; More than 40% of CPS teachers missed 10 or more school days; State Treasurer says Bright Start earns gold

Illinois quick hits: Illinois House members vote along party lines; More than 40% of CPS teachers missed 10 or more school days; State Treasurer says Bright Start earns gold

By Jim Talamonti | The Center SquareThe Center Square Illinois House members vote along party lines Illinois U.S. House members voted along party lines as the chamber approved legislation to...