Breath test evidence can drive a New York DWI case, but it is not automatically reliable or admissible. The defense should examine the stop, arrest, observation period, machine records, operator certification, testing sequence, calibration, simulator solution, mouth alcohol, medical issues, and timing.
What Prosecutors Must Prove
The charged VTL 1192 subdivision controls the offense elements. Ordinary DWI per se requires a BAC of 0.08 percent or more; aggravated DWI per se requires 0.18 percent or more. Both require operation and chemical evidence under VTL 1194. A breath-test number alone does not prove every element.
The following are evidence and procedure issues to review, rather than a universal list of offense elements:
- The legal basis for the stop, arrest and test request, including any suppression issue.
- The applicable testing authority and procedure.
- Instrument reliability, operator authorization and testing records.
- The connection between the result and the time of operation.
- The foundation for admission and the weight the factfinder should give the result.
Example of How This Charge May Be Alleged
A person may receive a DWI per se or aggravated DWI charge based heavily on a station-house breath test. The number may appear strong, but the defense may find issues in the observation period, mouth alcohol, vomiting/reflux, machine maintenance, calibration, or delay between driving and testing.
Defense Issues
- Verify the observation requirement applicable to the device and procedure, and examine mouth-alcohol risks; do not assume a universal twenty-minute rule.
- Review calibration, simulator solution, maintenance, diagnostic and certification records.
- Check operator authorization and compliance with the applicable procedure.
- Evaluate whether reflux, vomiting, residual alcohol or other documented conditions affected this test; a medical condition alone does not establish an inaccurate result.
- Use the timeline and video evidence to examine whether the result reflects BAC at the time of operation.
Evidence to Review Fast
DWI and VTL cases often turn on body camera video, dash camera footage, 911 calls, accident reports, breath-room video, chemical-test records, refusal warnings, field sobriety testing, officer training, toxicology, prescription records, DRE opinions, DMV records, and the exact timeline from driving to testing.
VTL 1194 distinguishes roadside screening from chemical testing. The implied-consent routes include specified two-hour periods after arrest or a positive roadside breath test. Testing authority and timing must be checked together: a court-ordered test is not subject to the same two-hour limit. Delay can still affect the connection to driving-time BAC.
Lebedin Kofman LLP handles DWI, DWAI, refusal, felony DWI, Leandra’s Law, vehicular assault, vehicular manslaughter, and serious driving-related criminal cases throughout New York City, Long Island, Nassau County, Suffolk County, and the surrounding courts.
License, DMV, and Case Consequences
Vehicle and Traffic Law 1192 and 1194 can affect more than the criminal case. Depending on the facts, consequences may involve suspension or revocation, refusal proceedings, ignition interlock, conditional license eligibility, insurance, employment, commercial driving, professional licensing, immigration review, and future felony enhancement risk.
A chemical-test refusal can create a separate DMV proceeding, even if the criminal charge does not result in conviction. The statutory hearing examines reasonable grounds, lawful arrest, sufficient clear or unequivocal warnings, and refusal. Preserve the refusal report, warnings and video, and identify both the DMV hearing and criminal-court dates.
Related DWI, VTL, and County Pages
Reviews, Results, and Real Defense Experience
People charged with DWI or serious VTL offenses should be able to see actual defense experience and client confidence, not generic claims. Review Russ Kofman’s attorney profile, representative cases and media coverage, and client reviews.
Frequently Asked Questions
Can a breathalyzer result be challenged?
Yes. Breath results depend on procedure, machine reliability, operator training, observation, timing, and admissibility.
Is a roadside portable breath test the same as the station chemical test?
No. Roadside screening and evidentiary chemical testing are different, and the legal role of each may differ.
Speak With a New York DWI Defense Lawyer
If you were arrested, received a Desk Appearance Ticket, are facing a DMV refusal hearing, or are worried about license, employment, immigration, or felony consequences, speak with a defense lawyer before appearing in court or making statements.
Prior results do not guarantee a similar outcome. This page provides general information only and is not legal advice. Every case must be evaluated on its own facts and circumstances.
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