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Janesville Police Department
Wednesday March 11th, 2026 :: 06:47 p.m. CDT

Advisory

Arrest Made in Child Sex Crime Case

In June of 2025, the Janesville Police Department was notified of an adult sending nude images to a child.  A search of electronic devices and additional interviews were conducted.  Today, March 11th, Joseph Cook was arrested on a traffic stop near Ruether Way and Elliot Street in the City of Janesville.  A search warrant was served at Cook’s residence in Janesville and an additional electronic storage device was located.  ESD K9 Maui was deployed during the search of the residence.  Cook was held in custody at the Rock County Jail for his charges.

Arrested:
Joseph W. Cook
36 year old Janesville resident

Charges:

Child Enticement 
Exposing Child to Harmful Material
Exposing Genitals to a child
Unlawful use of computerized equipment 


Pursuant to the directive of the Wisconsin Supreme Court, as found in Supreme Court Rule 20:3:6 Trial Publicity, you are advised that a charge is merely an accusation and that a defendant is presumed innocent until and unless proven guilty.

Address/Location
Janesville Police Department
100 N Jackson St
Janesville, WI 53548

Contact
Emergency: 9-1-1
Non-emergencies: 608-755-3100

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