driving impaired

Expert countertestimony- Often needed by criminal defendants

November 17, 2025

Expert countertestimony (EC) is often vital for a criminal defendants' trial, as is made clear with recent unpublished Virginia Court of Appeals affirmance of a DUI (driving under the influence of alcohol and drugs) conviction that ideally called not only for EC but also an...

He single-handedly helped me out of a situation I didn't think was winnable

If you are here, I was in your shoes not too long ago and looking for a lawyer. I got a DUI and a felony drug charge with a marijuana vape pen in Prince William County, and I was sure my life was ruined, so I started looking at lawyers to try to salvage my situation as best as I could. Mr. Katz came recommended from a friend after looking and talking to 2 other lawyers, thank goodness I made the decision to go with him. He was very prompt in getting back to me (which was the most important thing to me), and we set up a meeting to go over what had happened. I noticed when I visited him that he knew what he was doing and would not bullshit me in any way and would try to get the best possible outcome. We shook hands and he gave me homework. I will emphasize that the homework is THE MOST important thing you can do to help yourself. The court date came and as nervous as I was, Mr. Katz came in very confident and that put me at ease. He consulted with me, then talked to the PA for a good 5-10 minutes but it felt like a lifetime to me, and came back all smiles. I got the best possible outcome for anyone in my position. I figured I would get the DUI so that was expected, but I was really concerned about the felony drug charge because I was originally looking at 1 to 10 years. This madman somehow got it dropped to a disorderly conduct and no probation for anything. To say I was relieved is an understatement, he single-handedly helped me out of a situation I didn’t think was winnable. I would definitely recommend Mr. Katz to anyone because I know for a fact he will work hard to get the best possible outcome for you. Mr. Katz if you are reading this, I cannot thank you enough for what you did for me and I’m definitely grateful for all of your service and I’ll recommend everyone I know to you!

R.B.
Source: Avvo
Fearless Lawyer in front of the court

Amazing Lawyer, Jon has handled my case carefully and made all the necessary legal steps to negotiate my case with the Prosecutor. Contacted the complaint professionally and convinced to amicably settle the case. Gave me all the important staff that I need to do before he started dealing with the complaint and the prosecutor.
Fearless Lawyer in front of the court. Respected by both the Judges and the prosecutors.

Anon.
Source: Avvo
A truly nice guy who made me feel like my case was a priority

Jon handled my case with attention and care, from start to finish. He kept me informed every step of the way and charged me a more-than-reasonable rate. Best of all, he got me a great result. That would have been enough, but he’s a truly nice guy who made me feel like my case was a priority. I can’t recommend him enough.

J.E.
Source: Google

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driving impaired

Expert countertestimony- Often needed by criminal defendants

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Jon Katz Practices in the Following Courts and Beyond