Manhattan Police Department Promotes Garrison to Commander, Diaz to Sergeant
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.
Latest News Stories
JJC Advances ERP Modernization with New Vendor and Two-Year Budget
Will County Committee Shapes 2026 Legislative Agendas on Housing, Energy, and Health
JJC Authorizes Land Buy for Grundy County Expansion, Secures Site in Morris
Commission Grants Green Garden Solar Farm Project Variance Extension
Manhattan-Elwood Library Board Approves Annual Tax Levy
Manhattan Adopts Downtown Design Guidelines to Unify and Revitalize Village Center
Will County Committee Advances Phased Takeover of Central Will Dial-A-Ride Service
Manhattan Grapples with Route 52 Safety After Tragedy, Demands Action from IDOT
Manhattan Park District Ratifies Emergency Purchase of Bucket Truck for $36,500
Meeting Summary and Briefs: Will County Planning and Zoning Commission for October 21, 2025
Meeting Summary and Briefs: Will County Board Finance Committee for October 21, 2025
Crete Township ‘Tiny Home’ Owner Appeals Permit Denial