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Michael R. Knetzger

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Investigating High-Tech Crime
Michael Knetzger  More Info

True Crime in Titletown, USA
Tracy C. Ertl  More Info

About the Green Bay Police Department

In 1854, the City of Green Bay was chartered by the Wisconsin State Legislature. In August of 1857, the Green Bay Police Corps was established.  Today, the Green Bay Police Department is a full service law enforcement agency that is organized around an Operations Division, Investigations Division and Support Services.


According to the Green Bay Police Department, “Each year GBPD patrol officers respond to or self initiate well over 80,000 calls for service in the City of Green Bay. That is an average of 219 calls for service per day and equals almost 1 call for service per resident of the city. Although call volumes spike during the warmer weather, the patrol officers handle at least 3,000 calls per month, even in the dead of winter.  Patrol officers are responsible for police protection of the city, responding to calls for service, and enforcement of local ordinances and state laws, as well as traffic enforcement and monitoring traffic problems. Patrol officers also investigate reportable traffic crashes.


The city is divided into 10 patrol zones, five on each side of the Fox River. At least one officer patrols each zone. Some units are assigned as camera cars and carry fingerprint kits and other specialized equipment in addition to the normal patrol gear. We have recently added Automatic Defibrillator Units (AEDs) to most cars in our fleet.”


The Investigations Division of the Green Bay Police Department includes units such as Crime Prevention, Detectives, Evidence, Forensic Services, Gangs and School Resources. 

The function of the Green Bay Police Department gang officer “is to investigate gang related crimes and complaints, monitor gang members, maintain files on gang information, gather evidence, and arrest wanted gang members. In addition the gang officer passes on intelligence information obtained to members of the department.”




Michael R. Knetzger is a fourteen-year law enforcement veteran and currently a Lieutenant and Field Training Supervisor with the Green Bay Police Department (Wisconsin). Michael Knetzger began his law enforcement career as a patrol officer and detective for the Town of Brookfield Police Department.  He is a certified State of Wisconsin Technical College Instructor and teaches criminal justice courses at Northeast Wisconsin Technical College, Colorado Technical University Online and ITT Technical Institute. 


Michael Knetzger has successfully completed the International Association of Computer Investigative Specialists forensic examiner program, Basic Data Recovery & Analysis course, and several other courses and seminars on investigating internet crimes.  He is also a certified tactical instructor and teaches defensive and arrest tactics, firearms, and professional communications skills courses to new law enforcement recruits.  Michael Knetzger has a BA in Justice and Public Policy and a Masters in Public Administration.  He is the co-author of True Crime in Titletown, USA: Cold Cases and Investigating High-Tech Crime.


According to the book description of True Crime in Titletown, USA: Cold Cases, “Green Bay is best known for its football team and frigid winter climate. In True Crime in Titletown: Cold Cases, the authors offer profiles of three historic unsolved crimes including a 1931 bank robbery, extortion case and a restaurant murder. Tracy Ertl and Mike Knetzger go beyond the newspaper stories and interview people involved in the cases to fashion dramatic accounts of each crime.”


Dave Pettinari, Colorado State University, said of Investigating High-Tech Crime, “Computers have become an integral part of our daily lives.  It should come as no surprise that the criminal minds have turned to computers and the Internet to commit crimes.  New crimes and criminals are enduring as each new technology is introduced. This text never loses touch with the reality that not every investigator is computer savvy, while still offering advanced knowledge in an easy to understand manner.  Everything is based upon a building block approach, with each chapter forming a foundation for the next.  Written in everyday language, this text demystifies the often complex world of computer technology, translating it into a format that can be easily understood by a computer novice, while striving to incorporate concepts and references useful for the experienced investigator.  It doesn’t end there, it continues with exploring high-tech crimes demonstrating all of the tools and methods used by criminals, while teaching the techniques used by investigators to catch and prosecute them.”

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