Law Offices of John O. Knappmann

Firm Overview

With more than 25 years experience, John Knappmann, Criminal Defense Attorney, has extensive first-hand experience in criminal defense and especially with drunk driving. Mr. Knappmann is a former Wayne County Assistant Prosecutor and has tried hundreds of cases. He has a rare and unique advantage of a prosecuting insider's perspective and has formed working relationships throughout the court system. John Knappmann knows exactly how to present you, protect your legal rights, your reputation and will work hard for the best possible outcome for your legal case.

Areas of Focus:

-Drunk Driving
-Traffic Tickets
Main Office
Main Office
2836 W. Jefferson
Trenton  MI  48183
  • (734) 931-0440

Office Information

Office Hours
Daily, by appointment.
Emergency After Hours
Former Assistant Prosecutor, 25 years as an attorney, with a large part of my practice devoted to Criminal Defense and particularly Drunk Driving Defense. I work with my clients for the best results for their situation.
I am a member of the Michigan Association of OWI Attorneys and Criminal Defense Attorneys of Michigan, as well as other various groups. I regularly practice in District Courts and Circuit Courts in Southeast Michigan, including Monroe, Wayne, Oakland, and Macomb Counties.

How did your firm decide on the primary area of practice(s)?

As a former Assistant Prosecutor, I find it hard to represent certain types of criminals. However, I do think that average, generally law-abiding citizens who make a mistake or let things get out of control deserve good representation.

What experience or education distinguishes your lawyers from others?

I am a former Assistant Prosecutor who also has worked in various other capacities in addition to my current law practice. I am an adjunct professor of Criminal Law at University of Phoenix. 25 years of experience. University of Michigan Law School. My credentials are among the best you can find.

What distinguishes your law firm from others?

There are attorneys who will work cheap, take their client's money and rush them into court to plead guilty. I am not a bargain basement lawyer.

I spend time to prepare the case, working closely with my client. Sometimes it makes sense to plea bargain. Sometimes it makes sense to go to trial. After thorough preparation, my client and I can decide on the best course of action based on how things work out. I am just as comfortable either way, so what matters is what is best for the client.

What is your firm's point of view regarding clients educating themselves on legal issues?

I encourage it. The more clients know, the better we can help them.

John Knappmann

Former Assistant Prosecutor, 25 years as a lawyer. I have worked in different capacities in County government as well as my current private practice. Michigan Law School. Adjunct Professor in Criminal Justice.
  • Michigan Law School
    J.D. , 1989

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