Can Police Use a Hospital Blood Draw for an Aggravated DWI in New York?

The call I get goes something like this. Your son was arrested for DWI after a car accident on Long Island. At the hospital, he refused the blood test. Three times. He was charged with DWI and a refusal, and you thought you had a handle on what you were dealing with. Then, weeks later, the District Attorney files a new charge: Aggravated Driving While Intoxicated, with a blood alcohol reading of .24. How? The police went back and got a search warrant to seize the blood the hospital had already drawn for treatment. Now the DA wants to suspend his license on top of everything else before a single court date has been held on the new charge.

I have been making this argument on Long Island, and I recently won it. A court here agreed that a hospital blood draw taken for medical purposes does not qualify as a chemical test under New York’s Vehicle and Traffic Law, even when police later seize it by search warrant. The suspension was denied. This is one of the more technical fights in Long Island DWI defense, and here is what you need to understand about how it works and why it matters to your case.

What Is an Aggravated DWI Charge in New York?

New York’s Vehicle and Traffic Law § 1192(2-a)(a) makes it a crime to operate a motor vehicle while your blood alcohol content is .18% or higher — more than twice the legal limit. It carries harsher penalties than a standard DWI, and prosecutors are legally restricted from reducing it all the way down to the non-criminal DWAI traffic infraction. A conviction means a misdemeanor with real fines, a mandatory ignition interlock, and a longer license revocation than a standard DWI. It is a serious charge and it cannot be easily bargained away.

But here is what the statute actually says. The aggravated DWI charge requires proof of a BAC of .18% or higher “as shown by chemical analysis of such person’s blood, breath, urine or saliva made pursuant to the provisions of section eleven hundred ninety-four of this article.” That phrase is not boilerplate. It is a substantive element of the offense, written directly into the law.

What Does “Made Pursuant to VTL § 1194” Mean?

VTL § 1194 is New York’s implied consent law. It governs exactly how chemical tests must be administered after a DWI arrest. Under § 1194(2)(a), a qualifying chemical test must be administered at the direction of a police officer, within two hours of arrest, using approved collection materials and procedures. That is what the Legislature meant by “made pursuant to section 1194.” A police officer directs the test. It happens within two hours. It follows specific protocols designed to produce a result reliable enough to carry serious criminal consequences.

The Warrant Does Not Fix the Problem

This is the argument you will hear from the prosecution. The police got a warrant. They followed the law. The result should count.

It is a reasonable-sounding argument. It is also wrong.

A search warrant is a tool of seizure. It authorizes law enforcement to take possession of evidence that already exists. What it cannot do is retroactively direct the administration of a chemical test that occurred days or weeks before the warrant was ever signed. In the typical case, the blood was collected by medical personnel, for medical reasons, before any law enforcement request was ever made — sometimes before the officer even asked the patient to submit to a chemical test. The warrant gives police the sample. It does not give them a VTL § 1194 chemical test, because that test was never administered.

The Court of Appeals addressed the broader framework in People v. Moselle, 57 N.Y.2d 97 (1982), holding that blood samples taken without conformity to VTL § 1194 are inadmissible in VTL § 1192 prosecutions. The limitation on that rule, from People v. Casadei, 66 N.Y.2d 846 (1985), applies only where the defendant faces concurrent Penal Law charges like vehicular assault or homicide — not in a pure VTL case like most everyday DWI arrests on Long Island.

A search warrant gives police the sample. It does not give them a VTL § 1194 chemical test — because that test was never administered.

Edward A. Palermo, Esq.Lifelong Defender, Never a Prosecutor

The Two-Hour Rule Confirms It

VTL § 1194(2)(a)(1) requires a chemical test to be administered within two hours of arrest. In the typical hospital blood draw warrant case, the timeline looks like this:

By the time the warrant is executed and the sample analyzed, the statutory window closed weeks ago. There is no reading of VTL § 1194(2)(a)(1) under which a forensic analysis performed three weeks after an arrest satisfies a requirement measured in hours.

What About the Prompt Suspension at Arraignment?

When you are arraigned on an aggravated DWI charge, the court is required by VTL § 1193(2)(e)(7) to suspend your license pending prosecution — but only if the charge is supported by a qualifying chemical test result. The statute uses the exact same “made pursuant to VTL § 1194” language as the underlying charge. That is not a coincidence. The Legislature built that limitation into the suspension statute because a result that did not come through the VTL § 1194 process does not carry the reliability the law requires to justify the immediate loss of your license.

I raised this precise issue before a Long Island court earlier this year. The court agreed. A hospital blood draw seized by search warrant does not satisfy the VTL § 1194 predicate of the prompt-suspension statute, and the suspension was denied. The court applied the plain language of the statute and reached the logical conclusion: no VTL § 1194 chemical test, no prompt suspension.

How I Handle These Cases

When a client comes to me with a warrant-seized hospital blood draw, I work the problem on multiple levels at the same time:

• At arraignment — I object to the prompt suspension immediately and request the opportunity to brief the issue. The argument is statutory, the language is on our side, and I have a court ruling to point to.
• In the omnibus motion — I attack the facial sufficiency of the aggravated DWI charge itself, because a hospital draw made for treatment is not the § 1194 chemical test the charge depends on.
• At the suppression level — even if the charge stands, I challenge the collection methodology, the chain of custody, and whether the lab ran a serum test rather than whole blood. Serum readings run 10 to 20 percent higher than whole-blood equivalents, and that difference matters when the line is .18.
• Where a refusal is alleged — which it usually is — I contest it separately at the DMV refusal hearing, so the two proceedings never quietly damage each other.

Frequently Asked Questions