
Since 1992

​Investigative Consulting Services LLC
Available 24/7 I work the entire United States!

OFFICE ADDRESS 1507 S. Holmen Drive, Holmen, WI 54636
MAILING ADDRESS P.O. Box 652, Holmen, WI 54636
About Matt Hendren
Don't hire someone without knowing their experience, education, and training. You and your case are important to us. You matter. I have investigated cases since 1989 for over 36 years. I own several locations which have licensed private detectives. When you hire us, your case investigation will be directed, managed and worked by myself (Matt Hendren) and a licensed private detective within that state where the case is located. Also, I travel throughout the United States and investigate cases. Let's be clear. I am not a licensed private detective in any of the states. I team up with licensed private detectives of my choosing from the within that state that I am working in.
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EXPERIENCED
I have investigated thousands of cases since 1989 to present date.
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1989-1990 Undercover Police Officer (New Mexico)
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1991-1992 Undercover Police Officer (Wisconsin)
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1992-1998 Contracted State Public Defender Investigator (Wisconsin)
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1992-1998 Workman's Comp Surveillance Cases
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2001-2003 Correctional Sergeant (Wisconsin Department of Corrections)
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2003-2007 Deputy Sheriff (Milwaukee County Sheriff's Office)
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2007-2020 Investigator - Law Firm
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2020-2024 Contracted State Public Defender Investigator (Wisconsin)
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2024-Present owner of Investigative Consulting Services LLC
I have owned/operated a uniform security and loss prevention company from 1993-1998.
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Uniform Security Services for Roundy's Grocery Stores
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Loss Prevention Services for Roundy's Grocery Stores
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Uniform Security Services for Walgreens
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Uniform Security Services for McDonald's
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Uniform Security Services for multiple hotels construction sites
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EDUCATED
I have relative education and crucial training from 1988-2007
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1988-1989 Chippewa Valley Technical College (Police Science)
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1990 Pueblo Community College (Narcotic Identification and Investigations)
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1990-1991 Chippewa Valley Technical College (Police Science Degree)
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1991 WCTC - Police Academy - Wisconsin Law Enforcement Certification
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1992 - West Bend Fire Department - Wisconsin Fire Fighter One Certification
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1992-1998 Wisconsin Public Defender Investigator Conference Training/Education Seminars
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2001 Wisconsin Department of Corrections Academy
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2003 Milwaukee County Sheriff's Office Academy - Wisconsin Law Enforcement Certification
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2003-2007 Law Enforcement In-service Education and Training
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CREDIBLE
I have testified in court for numerous cases as a Contracted Public Defender Investigator and as a Sworn Law Enforcement Officer
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Felony and Misdemeanor cases, child custody cases, workman's comp cases and so forth.
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RELIABLE
You can rely on our time to investigate your case in a timely manner and thoroughly. I have been doing this since 1989.
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I AM PASSIONATE ABOUT WHAT I DO
During my life, I have been accused of crimes by known offenders that I did not commit. I know how it feels to be falsely accused and yet just because you are charged, others think that you are guilty by association of being charged. That is why I invest all my skills, education and training to investigate a case from the start to the finish. Leaving no stone unturned. The D.A. has investigators and unlimited resources to convict you. Isn't it time to have an investigator on your side, working for you? You may be guilty, that doesn't matter to me. What matters to me and to you is that your case is fairly treated with a thorough defense investigation.

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Contacting Me
I Will Meet With You
Just give me call and ask any questions that you may have and/or to discuss your needs. I will meet with you in person, too. Your questions and our discussion are confidential. If you need an attorney, I can provide you with some referrals that I trust.
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Cell Phone Number
(414) 588-8213
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Email Address
DirectorOfICS@gmail.com
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I Work the Entire United States
Even though I live in the La Crosse area, I travel around the United States and work on cases.
Reviews
I'm a legal assistant for a large law firm and I am always looking for good process servers that are reliable. Matt at First Priority Investigations really helped me out of a bind when I needed a process server in the La Crosse area FAST. He was responsive and communicative and got the job done the same day in a rush without a hitch. Posted by Sarah (DeWitt Law Firm)
Fast, efficient and capable. Handled my business within 24 hours. Communicated well and promptly. This is the business you want to hire for process service! Thank you Matt for listening and getting the job done quickly! Posted by Melissa Small
I contacted First Priority Investigations to inquire about personal service of legal paperwork. The owner answered my initial questions professionally and I was able to schedule an appointment for a consultation the next day. Should the need arise, I would not hesitate to retain this company and their services again. Thank you! Posted by Rebecca Albrecht
I'm a legal assistant for a large law firm and I am always looking for good process servers that are reliable. Matt at First Priority Process Server really helped me out of a bind when I needed a process server in the La Crosse area FAST. He was responsive and communicative and got the job done the same day in a rush without a hitch. Posted by Sarah Piersma
I was facing 10 to 15 years in prison on a aggravated kidnapping charge. I was involved with a woman that claimed that I had kidnapped her versus telling her live-in boyfriend that she was having an affair with me. Matt recorded her admitting that she made this false allegation in the hopes that her boyfriend wouldn't find out about us when he discovered that we were traveling to Chicago together. I couldn't have asked for a better investigator. The charge was immediately dismissed by the District Attorney after hearing the digital recording! Posted by A.C.
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My Podcast Video Series
About My Audio/Video Podcast Series:
My audio/video podcast series is located on spotify. Just search the keywords, "First Priority Investigations." It is also published on First Priority Investigation's facebook page. Just click this link: https://www.facebook.com/FirstPriorityInvestigations
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I post my audio/video podcasts talking about the circumstances surrounding some of the cases that I have investigated over the years. Obviously, names and specific details are changed and/or not detailed to protect individuals involved in these cases.
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Types of cases discussed in these video podcasts are as follows;
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Homicides
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Attempted Homocides
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Burglaries
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Sexual Assaults
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Child Custody Cases
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Felony Batteries
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Restraining Orders/Contempt of Court Orders
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Strong Arm Felonies