Investigations Division



The Woodbury County Sheriff's Office Investigation Division is made up of men and women who work diligently following up on crimes that occur in Woodbury County.  Detectives not only investigate and help the Woodbury County Attorney's Office prepare prosecutions; they also investigate crimes at the federal level.  Four detectives are currently assigned to the Investgations Division working general crime and two deputies to the Drug Enforcement Administration (Tri-State Drug Task Force) and the United States Marshals Service.

Another major part of the Woodbury County Sheriff's Office Investigation Division is the Crime Scene Detective.  These detectives are responsible for the collection and preservation of evidence collected at a crime scene.  An additional responsibility Crime Scene has is the storing of this property in the evidence room and making the evidence available at the time it is needed for court.

The mission of the Investigations Division is to provide investigative expertise and to work in partnership with the various communities and Sheriff's Office entities to enhance public safety.  Investigations is also committed to supporting local, state and federal law enforcement agencies, to ensure a cooperative, successful and unified effort to protect and serve the citizens of Woodbury County.

For questions or concerns involving the Investgations Division, please contact:

Sgt Norm Peterson at 712.279.6010 or This email address is being protected from spambots. You need JavaScript enabled to view it. 

Captain Willie Garrett at 712.279.6010 This email address is being protected from spambots. You need JavaScript enabled to view it.



Citizens have the right to expect the Sheriff's Office to provide law enforcement services that are fair, effective and impartially applied. The Sheriff seeks to maintain the integrity of the Office, and its employees.

Employees are held to high standards in official conduct, and are expected to respect the rights of all citizens. Employees have the right to be protected against false charges of misconduct or wrongdoing.

The Sheriff's Office administration is responsible for reviewing employee involved critical incidents, and investigating complaints of misconduct. All complaints of misconduct are thoroughly investigated.

To make a complaint, download the complaint form below and mail it to:


P. O. BOX 3715


ATTN:  Captain Willie Garrett


Scan the completed document as a PDF and e-mail to:  This email address is being protected from spambots. You need JavaScript enabled to view it.



Under certain circumstances, you will be directed to fill out a Bad Check Packet.  Please see the Bad Check Packet attached below for the proper procedures in filing complaints on Closed Account/Insufficent Funds checks.  It is vitally important for prosecution purposes the directions are adhered to in the packet.  The return address for the packets is:

Woodbury County Sheriff's Office

P. O. Box 3715

Sioux City, Iowa  51102

Attn:  Investigations Division