Northern Virginia Criminal Defense Lawyer for Drugs, DWI, Assault, Online Crime, Sex Crimes & More

Fairfax Criminal Lawyer | Virginia DWI Attorney – Successful results since 1991

Northern Virginia Criminal Lawyer/ DWI Lawyer for Counties of Fairfax, Arlington, Prince William, Loudoun & Beyond
Putting my successful experience to work for your best possible outcome


Call (703) 383-1100


Call (703) 383-1100

AV 5.0/5.0 PEER-REVIEW RATING By Martindale-Hubbell

Call (703) 383-1100




YOU ARE PROBABLY HERE BECAUSE you or a loved one is in hot water with a criminal case– a felony, misdemeanor, or DWI/DUI. If so, your battle has just begun, to find the best possible way out of a challenging situation.

It is time to get the right criminal defense lawyer for you. Your next court date is around the corner. The police already know what they are going to say in court, and the prosecutor will work in tandem with the police. Who is on your side? Fairfax, Northern Virginia criminal lawyer Jon Katz is a battle-tested criminal defense trial veteran,  fighting as a team with you at every turn. Jon will never judge you. Your political views, job, and favorite sports teams matter little to Jon. All that matters is that you need first-rate criminal defense.

Jon gets right to work for the showtime of each of your court dates. From the get-go, you will get a quick reply to your phone calls and emails, and a meeting with Jon. Jon personally defends each client, backed up by his two experienced, caring and fully committed assistants Lori and Natasha.

LIKE LIVE TELEVISION, YOUR CASE HAS TO BE PRESENTED RIGHT THE FIRST TIME. Since 1991, Jon has battled for justice for thousands of criminal defendants. Virtually Jon’s entire law practice is criminal defense, in Northern Virginia. He does this work because he loves his clients and the battle, relishes the victories, and demands justice and civil liberties in a system fraught with too much injustice. With criminal defense, Jon knows he is on the side of the angels.

If you are charged with a crime, your case is neither too big nor too small for Jon. All that matters is that it is your case, and your liberty, reputation and possibly even livelihood on the line. When you hire Jon, you have the peace of mind that he always is on your side, doing what it takes to obtain the best possible outcome.

Jon will always be ready to go to trial with you. Any negotiations are from a position of battle-ready strength. No matter how tough the fight might look at first blush, Jon focuses on disintegrating the obstacles and finding and building on the possibilities.

This is your case and only your case. Jon is here for you and you alone.


Fairfax, Virginia criminal lawyer Jon KatzNEVER PROSECUTED; NEVER WILL

“Aw sh*t” may be one of the first responses to being arrested for a crime. But in reality, your battle has just begun. And fortunately, we are in a nation that affords many more rights and possibilities for victory for criminal defendants than in most of the rest of the world. Don’t turn your back on those possibilities.

Judges are generalists who are obligated to move cases along. Prosecutors and police have their own agendas. Your criminal defense lawyer is your only true friend in the courthouse, hopefully supplemented by the support of your friends and family, but even if they seem to abandon you, you need a lawyer who will stick with you throughout your case.

Fighting for criminal and DWI/DUI defendants and the Constitution is a calling that Fairfax, Northern Virginia criminal defense lawyer Jon Katz relishes. Jon does it not as the most lucrative way to earn an attorney’s  living, but because he knows what it is like to be accused (having stood up to trespassing public school teachers from early on), believes strongly in this path, loves the work and the interaction with his clients, and most importantly loves winning.

Our clients are what we are all about. Therefore, we work tirelessly to deliver them our best service, using all our jury trial and bench trial experience, skill, caring, and resources to help our clients win. We do our best to help our clients go on with their lives as we work on their behalf. We welcome our clients’ ideas, inquiries and teamwork. We work with our clients as a united front against our opponents and against injustice, and are happy for our opponents to know that we are prepared for battle and fearless to go to battle. We know that honey catches more flies than sandpaper, but also know that nothing beats being fully armed to battle in court for justice for our clients.

The first time you meet Jon Katz, you will know that he is fully devoted to you.

  • justice
    Are you ready to pursue victory in your case?

    Fairfax criminal lawyer Jon Katz focuses on your best defense. He will work closely with you to develop and pursue a tailor-made battle plan focused on obtaining the best possible results for you.

    The fight for victory in your criminal case calls for hard and smart work, relevant experience, strategy, cunning, and teamwork. Jon’s clients’ reviews speak for themselves, backed up by his over two decades of experience defending over three thousand criminal defense and DWI clients.


NACDL memberSince 1991, Fairfax criminal lawyer Jon Katz has been a member of the premier National Association of Criminal Defense Lawyers (NACDL).

NCDD National College for DUI Defense: Jonathan L. Katz

Jon’s membership in the National College for DUI Defense is one more way he pursues the best possible results in DWI cases.

Jon Katz joined the marijuana legalization cause in 1990, and is a member of the Legal Committee of the National Organization for the Reform of Marijuana Laws (NORML)

Latest Posts

  • Prosecutors risk dangerous territory not to overdisclose evidence to criminal defense lawyers. Otherwise, the prosecution must spend more energy and time -- both of which they have in short supply -- to avoid violating the Fifth Amendment's Due Process Clause “if it withholds evidence that is favorable to the defense and material to the defendant’s guilt or punishment.” Smith v. Cain, 565 U. S. 73, 75 (2012) (summarizing Brady v. Maryland, 373 U. S. 83 (1963)). ...

  • On June 23, 2017, the Supreme Court expanded upon Padilla, by confirming that it is ineffective assistance of counsel under the Sixth Amendment for a criminal lawyer to misadvise his or her client that a particular conviction or sentence will not carry adverse immigration consequences. Jae Lee v. United States, ___ U.S. ___ (June 23, 2017)....

  • When a homicide defendant knows s/he will be found to have caused the decedent's death, the defendant often finds himself or herself pursuing a self defense claim, or else a claim of a lesser level of culpability than first degree murder (for instance manslaughter or second degree murder). A self defense claim requires being in imminent danger of harm at the time of the killing. Carter v. Virginia, ___ Va. ___ (July 22, 2017). This week, the Virginia Supreme Court underlined how imminent must be that danger. Carter. Here, Carter went to the home of Jennifer Johnson, with whom he had a relationship on and off. He was in her bedroom a short time...

  • A conviction for soliciting a minor for sexual activity can bring harsh sentencing. Va, Code § 18.2-374.3.  In an unpublished 2-1 opinion, Virginia's Court of Appeals on May 30, 2017, reversed Mark Murgia's conviction under said statute, because as disgusting as his words were to a sixteen-year-old woman, he was stating desire rather than inviting the minor female to join with him, even when he texted her in minute detail about the dream he had recently had in which he was engaging in sex with her. Murgia v. Virginia, Record No. 0788-16-1 (Va. App., May 30, 2017). ...