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What Makes a DWI an "Aggravated" DWI in Buffalo?

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What Makes a DWI an "Aggravated" DWI in Buffalo?

July 29, 2026
What Makes a DWI an "Aggravated

What Makes a DWI an "Aggravated" DWI in Buffalo?

A DWI becomes an aggravated DWI in New York in two situations. The first is a very high blood alcohol content, 0.18 or more. The second is driving while intoxicated with a child 15 years old or younger in the vehicle.

Aggravated driving while intoxicated is a more serious charge than a standard DWI. Driving while intoxicated, or DWI, means operating a vehicle while impaired by alcohol or drugs. Aggravated means the law treats the situation as worse, either because of the high reading or because a child was in the car.

This post explains both forms of the charge, the penalties, how it differs from a standard DWI, and what a driver facing it in Erie County can do.

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What Blood Alcohol Level Counts as Aggravated DWI in Buffalo?

A blood alcohol content of 0.18 or more. Blood alcohol content, or BAC, is the percentage of alcohol in your blood. The adult limit for a standard DWI is 0.08. The aggravated level is more than double that.

The reading comes from the chemical test at the station, the test of breath or blood that measures BAC. A reading at or above 0.18 is what moves a case from standard DWI to the high blood alcohol form of aggravated driving while intoxicated.

That number is not the end of the story. A reading can be wrong, and the way it was produced can be examined. The number is a starting point, not a verdict.

How Does Having a Child in the Car Make a DWI an Aggravated DWI?

A child 15 or younger in the vehicle raises a DWI to an aggravated charge. This applies even when the blood alcohol content is not high. The child's presence is what drives it.

This version is treated very seriously. Driving while intoxicated with a young passenger is charged as a felony, even on a first offense. That is a major step up from a standard first DWI, which is usually a misdemeanor.

There can be more than the criminal case. A charge involving a child can draw the attention of child protective services, which operates a separate process. A parent or caregiver can face questions far beyond the courtroom.

What Are the Penalties for a First Aggravated DWI in New York?

They depend on which form of the charge applies. The two forms carry different exposure.

For the high blood alcohol form on a first offense:

  • Fines: A fine in the range of 1,000 to 2,500 dollars.
  • Jail: Up to one year is possible.
  • License revocation: At least one year.
  • Ignition interlock: A required ignition interlock device, a breath tool wired to the car.

The child passenger form is a felony on a first offense. It carries higher fines, the possibility of state prison, a license revocation of at least one year, and the same interlock requirement. The felony record is itself a lasting consequence.

How Is Aggravated DWI Different From a Standard DWI?

It is the same core offense, with greater weight. A standard DWI rests on impairment or a BAC of 0.08 or more. Aggravated driving while intoxicated adds either a very high reading or a child passenger.

The penalties climb across the board. Longer license loss. Higher fines. More jail or prison exposure. For the child passenger form, a felony instead of a misdemeanor.

The defense work is similar in kind but higher-stakes. The stop, the arrest, the testing, and the footage all still matter. There is simply more on the line, so each piece gets a harder look.

Does an Aggravated DWI Conviction Require an Ignition Interlock Device?

Yes. Both forms of aggravated driving while intoxicated require an ignition interlock device on conviction. The device is a breath tester wired to the car that stops it from starting if it detects alcohol.

The requirement lasts at least twelve months in most cases, and the court sets the exact length. It applies to every vehicle the driver owns or operates.

The interlock comes on top of the fines, the revocation, and any jail or probation. It is one more reason the final charge matters so much.

Can a High Breath Test Reading in an Aggravated DWI Case Be Challenged?

Yes. A high number is not automatically reliable. The reading depends on the instrument, the operator, and how the test was administered.

Several things can affect a breath result. Whether the instrument was maintained and calibrated. Whether the operator was trained and followed the steps. Whether the required observation period has happened. Whether a medical condition or other factor skewed the sample.

Our attorneys request the breath-testing instrument and operator records by concept, and the dashcam and body camera footage, and then compare them to what the report claims. We cannot promise the reading will be thrown out, but a high number can and should be tested.

Can a Parent Charged With Aggravated DWI With a Child Passenger in Erie County Fight the Charge?

Yes. A child passenger charge is serious and defensible. A felony charge is not a conviction, and the prosecution still has to prove its case.

The defense addresses the same questions as in any DWI case, plus the specific facts here. Was the stop lawful? Was the driver actually impaired? Do the test and the footage support the charge? Was the child, in fact, 15 or younger and in the vehicle as alleged?

The collateral side matters too. Our DWI attorneys understand how the criminal case and any child protective services process interact, and we work to protect a parent on both fronts. We cannot promise a result, but we build the strongest possible position on every piece.

Talk to Trbovich Law Firm About an Aggravated DWI Charge

An aggravated DWI is one of the most serious impaired driving charges in New York, whether it comes from a high reading or a child in the car. The charge is not the final word. Talk to Trbovich Law Firm before your next court date so we can examine the evidence and put your case in the strongest possible position.

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If you find yourself on the wrong side of the law, let us put our knowledge and experience to work for you.

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