A conviction for homicide by vehicle while DUI in Pennsylvania means state prison. The law sets a mandatory minimum of three years for each person who died, and the judge cannot go below it. Prior DUIs raise that floor to five or seven years per death. Few charges in Pennsylvania leave a judge less room to show mercy, so the defense has to start long before sentencing.
If you or someone you love has been charged, or police are still investigating a fatal crash, here is what you need to know.
What the Commonwealth Must Prove
The charge is defined in 75 Pa.C.S. § 3735. The Commonwealth must prove three things beyond a reasonable doubt:
You drove under the influence. You must actually be convicted of DUI under 75 Pa.C.S. § 3802. That can be alcohol, a controlled substance, or a combination.
Another person died. The statute covers deaths you caused unintentionally. No intent to hurt anyone is required.
The DUI caused the death. This is the element most cases turn on. It is not enough that you were impaired and a crash happened. The Commonwealth must connect the impairment to the death.
That third element is where many of these cases are won or lost. A sober driver might not have avoided the crash either. The other driver may have run a light. A pedestrian may have stepped into a dark road. Weather, road design, or a mechanical failure may have played a role.
The Penalties: Mandatory Minimums Stack for Each Death
The grade of the offense and the minimum sentence depend on your record. Each mandatory term applies separately to every person who died, and the terms run back to back.
No qualifying prior DUI: felony of the second degree; up to 10 years and a $25,000 fine; mandatory minimum of 3 years per death.
One qualifying prior DUI: felony of the first degree; up to 20 years and a $25,000 fine; mandatory minimum of 5 years per death.
Two or more prior DUIs, or a prior "DUI following diversion" conviction: felony of the first degree; up to 20 years and a $25,000 fine; mandatory minimum of 7 years per death.
Also convicted of "DUI following diversion" in this case: felony of the first degree; up to 20 years and a $25,000 fine; mandatory minimum of 5 years per death.
A crash that killed two people carries a six-year minimum even for a first offender. The sentencing guidelines do not override these numbers. The statute says so directly in § 3735(b).
A mandatory minimum also means no probation, no county sentence, and no parole before the minimum is served. Because the maximum must be at least double the minimum, every one of these sentences is a state prison sentence. PennDOT will also revoke your driver's license.
How DUI Homicide Cases Are Defended
Every DUI homicide is different, but the strongest defenses usually come from one of these areas.
Causation. We retain independent accident reconstruction experts to examine speed, sight lines, signal timing, vehicle data, and the other party's conduct. If the impairment did not cause the death, the Commonwealth cannot prove § 3735.
The blood test. Most of these cases depend on a blood draw. Police generally need a warrant or valid consent for a blood test. Birchfield v. North Dakota, 579 U.S. 438 (2016). Pennsylvania courts have also suppressed blood results taken from unconscious drivers who could not consent. Commonwealth v. Myers, 164 A.3d 1162 (Pa. 2017). If the blood was drawn illegally, the result may be thrown out.
The lab work and timing. We look at how the sample was collected, stored, and tested. We look at whether it was taken within two hours of driving, as several DUI subsections require. In drug cases, we look at whether a metabolite in the blood actually shows impairment at the time of the crash.
The charge itself. Not every fatal crash involving alcohol or drugs is a § 3735 case. Homicide by vehicle under § 3732 and involuntary manslaughter are separate offenses that may not carry the same mandatory sentence. Where the evidence is contested, negotiating toward a charge without a mandatory minimum can change the outcome by years.
Mitigation. Even when a mandatory minimum applies, the judge decides the maximum and whether to impose more than the minimum. Your life story, your remorse, your treatment, and your support in the community all matter at that stage.
What to Do Right Now
The first weeks after a fatal crash matter most. Vehicles get repaired or scrapped. Surveillance video gets recorded over. Witnesses forget.
Do not talk to police or insurance adjusters about the crash without a lawyer.
Do not post about the crash on social media.
Contact a criminal defense lawyer before charges are filed if you can, so evidence can be preserved and independently examined.
Talk to a Pittsburgh DUI Homicide Defense Lawyer
Attorney Adam M. Bishop has defended people charged with serious crimes in Pennsylvania for almost two decades. He represents clients in Allegheny, Beaver, Washington, Westmoreland, and surrounding counties. He knows what a DUI homicide charge does to a family, and he builds each defense from the ground up, starting with the crash itself.
If you or someone you love is facing a homicide by vehicle charge, or is under investigation after a fatal crash, call Bishop Law LLC at (412) 589-9422 for a confidential consultation. The office is at 220 Grant Street, Suite 301, in downtown Pittsburgh. You can also contact us online.
This post is general information, not legal advice. Reading it does not create an attorney-client relationship. Every case depends on its own facts.

