Professional Wisconsin Private Investigator and Detective Agency - La Crosse, Wisconsin.
A full-service, licensed detective agency serving the entire state of Wisconsin & beyond...
Wisconsin Investigators
Providing an extensive range of professional, confidential investigations to clients throughout the state of Wisconsin
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Fully Licensed & Insured
Haller Investigations
is licensed by the
State of Wisconsin - Dept. of Regulation & Licensing
and fully insured for
your protection.
Wisconsin Detective Agency
License: #16792-62

Member of the
Professional Association
of Wisconsin Licensed
Investigators
Easy Online Payments
Wisconsin's Premier Private Detective Agency
Located in La Crosse, Wisconsin, Haller Investigations LLC is a full service private detective agency offering a wide range of professional, confidential investigations and related services to attorneys, law firms, businesses, corporations, insurance companies and private individuals in and around the La Crosse area and throughout the state of Wisconsin.
Click here for a list of the services we offer.
The agency is owned and operated by Randy Haller, a retired Sergeant from the La Crosse County Sheriff's Department. Randy has over 20 years of experience in criminal investigations and is proud to bring his knowledge, experience and professionalism to the public as a licensed Wisconsin private detective.
Read more about Haller Investigations, LLC.
Specializing in Criminal Defense Investigations
Although we offer a full range of general investigations, Haller Investigations LLC specializes in criminal defense investigations for attorneys and pro-se defendants. We will re-interview existing witnesses, canvas neighborhoods, review and analyze police reports and evidence that may well be vital in your hopes of a successful defense.


