Deandra M Grant & Associates

Deandra has completed:

The Operator and Maintenance Technician course for the Intoxilyzer 5000

The certification course in the administration of Standardized Field Sobriety Tests

The Standardized Field Sobriety Testing Instructor course

The Drug Recognition Expert overview course

Over 24 hours of training in the drawing and testing of blood samples for use in DWI cases

The Forensic Chromatography: Theory and Practice course through the American Chemical Society and Axion Labs

Medical Conditions That Affect the Breath Test

Deandra Grant knows that multiple factors can affect a breath-test score, the ability to perform the field sobriety tests and/or the rate at which alcohol is absorbed and eliminated. These include:


Prescription or over-the-counter drugs

Diseases and medical conditions

Airbag deployment in an accident

Racial heritage

Type of alcohol consumed, rate of consumption, lack of food while drinking, type of diet

Factors That Affect the Performance of Standard Field Sobriety Tests


Lack of sleep or lack of coordination

Wind and dust, lights from traffic or squad car

Fear and nervousness, inner-ear problems

Age, injuries to the leg or knee, shoes and weight

If an attorney does not ask you about factors such as these, he or she may not know the science behind a successful DWI defense. Call Deandra for a full investigation of the defenses available to you. This is not the time to hire a less experienced attorney because he or she is a friend, the fees are low or you are too embarrassed to call another. We can meet with you at her Dallas or Plano office.

We handle a full range of DWI related matters in Texas including:

Texas Field Sobriety Tests & Drunk Driving Defense

Effect of a DWI Offense on your Criminal Record

Expunction of Criminal Record

Petition for Non-Disclosure

DWI Information on Texas Driver's License Suspension

The Law Offices of Deandra M. Grant, PC with offices in Collin and Dallas counties provides DWI defense and criminal defense in Plano, Dallas, Frisco, McKinney, Allen, Wylie, Garland, Mesquite Texas and the surrounding communities.

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