Paul Johnson, Paul Johnson - Private Investigator

My career in law enforcement as a patrol officer, sheriffs detective, to my retirement as a Chief of Police has exposed me to how criminal cases are systematically constructed. Using my training along with your counsel, I have a proven record ensuring justice through not guilty verdicts in felony DUI, Homicide, Sexual Assault and more.



TriTech Center
331 2nd Ave S.
Minneapolis, MN 55401

Business Phone



Business Hours



Child Abuse, Civil Investigation, Corporate Investigations, Criminal Investigations, Criminal Investigations / Defense, Defense, Drugs, Drunk Driving Defense, Elder Abuse Investigations, Industrial Accidents, Insurance, Personal Injury, Probate, Probate / Missing Heirs, Process Service, Public Record Searches, Real Estate, Trial Preparation, Workplace Investigations, Wrongful Death Investigations

Coverage Area



Minnesota Private Investigator License: 2040

Counties Covered: Aitkin, Anoka, Becker, Beltrami, Benton, Big Stone, Blue Earth, Brown, Carlton, Carver, Cass, Chippewa, Chisago, Clay, Clearwater, Cook, Cottonwood, Crow Wing, Dakota, Dodge, Douglas, Faribault, Fillmore, Freeborn, Goodhue, Grant, Hennepin, Houston, Hubbard, Isanti, Itasca, Jackson, Kanabec, Kandiyohi, Kittson, Koochiching, Lac Qui Parle, Lake, Lake of the Woods, Le Sueur, Lincoln, Lyon, Mahnomen, Marshall, Martin, McLeod, Meeker, Mille Lacs, Morrison, Mower, Murray, Nicollet, Nobles, Norman, Olmsted, Otter Tail, Pennington, Pine, Pipestone, Polk, Pope, Ramsey, Red Lake, Redwood, Renville, Rice, Rock, Roseau, Scott, Sherburne, Sibley, St Louis, Stearns, Steele, Stevens, Swift, Todd, Traverse, Wabasha, Wadena, Waseca, Washington, Watonwan, Wilkin, Winona, Wright, Yellow Medicine

Wisconsin Private Investigator License: 11037-63

Counties Covered: Adams, Ashland, Barron, Bayfield, Brown, Buffalo, Burnett, Calumet, Chippewa, Clark, Columbia, Crawford, Dane, Dodge, Door, Douglas, Dunn, Eau Claire, Florence, Fond du Lac, Forest, Grant, Green, Green Lake, Iowa, Iron, Jackson, Jefferson, Juneau, Kenosha, Kewaunee, La Crosse, Lafayette, Langlade, Lincoln, Manitowoc, Marathon, Marinette, Marquette, Menominee, Milwaukee, Monroe, Oconto, Oneida, Outagamie, Ozaukee, Pepin, Pierce, Polk, Portage, Price, Racine, Richland, Rock, Rusk, Sauk, Sawyer, Shawano, Sheboygan, St Croix, Taylor, Trempealeau, Vernon, Vilas, Walworth, Washburn, Washington, Waukesha, Waupaca, Waushara, Winnebago, Wood


Paul Johnson Investigations specializes in:

  • DWI Case Analysis
  • Interviews
  • Accident Investigations
We also provide process service.

DUI Case Analysis and Expert Witness Testimony - Nationwide

As a DWI Detection and Standardized Field Sobriety Test (SFST) Instructor, my training and continuing SFST education far exceeds that of most arresting officers. This course is through the National Highway Traffic Safety Administration (NHTSA) therefore my expertise can be used nationwide.

I will endeavor to expose any discrepancies the officer used in determining the Probable Cause influencing the decision to arrest. Just like every human being, officers do pick up bad habits and take short cuts. The SFST Test is accurate only if done accurately. Whether working for the client or the defense attorney, my primary role is to review all documents and video, make recommendations on what the best course of action to take, and testify in court.

A client can plead guilty to the charges but often a skilled DUI lawyer with a competent investigator will ensure all evidence is presented to the prosecutor. My experience with attorneys has resulted in charges dropped entirely or lessened early in the process. These negotiations occur during the pre-trial conference. I will first start with the client filling in a questionnaire with over 100 questions giving background about everything surrounding this incident.

I can work with the client directly or through your attorney analyzing your arrest and submit your case analysis along with questions that need to be asked on your behalf.

My Background and Qualifications

As a retired Sheriff Investigator and Chief of Police, I understand the primary objective of the officer is to build a case the prosecutor will take to trial. Gathering just the right amount of evidence for a conviction is not justice. As your investigator, my role is to ensure that the jury is presented all the available evidence, not just what is needed to obtain convictions.

Being on your team I continue analyzing the report, analyzing witness statements and re-interview, verifying the statements reported are actually accurate. Re-interviewing witnesses often uncovers additional witnesses the police spoke to, but didn't give the narrative necessary for their theory, so it was omitted from the statements presented to the prosecutor.

I have verified advanced training in interview techniques, forensic Interviewing of Sexual assault victims, advanced training in arson investigations.

My experience includes contract work with many attorneys whose primary purpose is defending the innocent, contract work the State Public Defenders Office, investigations for Post-Conviction Appeal Investigations, and DUI Investigations as a SFST Investigator.

Being a licensed Private Investigator in Minnesota and Wisconsin, I have been involved in many cases where charges have been completely being dismissed before trial, as well as numerous not guilty by jury verdicts.

On Interviewing

The ability to interview is an art, essential when preparing criminal and civil cases. Locating and follow up with witnesses is necessary to ensure justice prevails.

Civil Litigation - My experienced ranges from probate challenges, to locating, interviewing, and obtaining signed Affidavits in personal injury cases and property disputes.

DUI Cases - I have maintained my training by the NHTSA / SFST. I will prepare analysis as well as testimony which has resulted in verifiable not guilty verdicts.

I do my work and will not hire employees.

Process Service

I am able to do process service throughout northwest Wisconsin as well as the Twin Cities and Duluth area. You will be surprised how reasonable my rates are.