Imagine a DWI case where the police report describes a driver as obviously intoxicated.

According to the officer, the driver had slurred speech, difficulty maintaining balance, poor coordination, and multiple problems during field sobriety testing. A chemical test later reports an alcohol concentration above the applicable legal limit.

Based on those two pieces of evidence, the case may sound extremely difficult to defend.

Then I watch the body camera footage.

The driver is speaking clearly. He produces his license without difficulty, understands the officer's questions, and responds appropriately. When he gets out of the vehicle, he does not stumble or appear noticeably unsteady. His performance during the field sobriety tests is not perfect, but it does not look nearly as poor as the written report makes it sound.

Now I have three important categories of DWI evidence, and they are not telling me exactly the same story.

That is when the real analysis begins.

A Hypothetical Texas DWI Arrest

Consider the hypothetical in more detail.

An officer stops a driver late at night after observing the vehicle drift within its lane and briefly touch a lane marker. During the stop, the driver admits having drinks with dinner.

The officer begins a DWI investigation.

In the police report, the officer describes several observations associated with intoxication. The officer writes that the driver had slurred speech, appeared unsteady, and performed poorly on field sobriety tests.

The driver is arrested. A chemical test later reports an alcohol concentration above 0.08.

If someone told me only those facts, I would have serious concerns about the strength of the State's case.

But that is not enough information for me to advise a client about whether to negotiate or go to trial.

I still need to see the evidence for myself.

Evidence #1: What Does the Police Report Say?

The police report is an important starting point because it tells me what the officer claims to have observed.

I want to know why the vehicle was stopped, what happened during the initial contact, what the driver allegedly said, how the officer describes the driver's appearance, and how the field sobriety tests were administered and scored.

But a police report is still a summary written after the event.

Terms such as "slurred speech," "unsteady balance," and "poor coordination" sound significant when they appear on paper. The question is whether the underlying evidence supports those descriptions.

When video exists, I can often make that comparison directly.

If the report says the driver could barely maintain balance but the video shows the driver standing and walking normally, I need to understand that discrepancy.

It does not automatically mean the officer intentionally wrote something inaccurate. Human observations can be subjective. But when the State wants to use those observations as evidence of intoxication, the defense should examine whether the objective record supports them.

Evidence #2: What Does the Chemical Test Show?

Now suppose our hypothetical driver has a breath or blood test showing an alcohol concentration above 0.08.

That is significant evidence.

Under Texas law, intoxication can include having an alcohol concentration of 0.08 or more. That means a chemical result at or above that level cannot simply be ignored because the driver appears relatively normal on video.

But I also do not stop my analysis when I see a number on a laboratory report or breath-test printout.

Depending on the type of test and the facts of the case, I may need to examine when the sample was collected, how it was obtained, how it was analyzed, and whether there are legitimate questions concerning the reliability or interpretation of the result.

The chemical test is part of the case. It may be a very important part.

It is still evidence that needs to be evaluated rather than a substitute for evaluating the rest of the investigation.

Evidence #3: What Does the Video Actually Show?

Video can completely change the way I understand a DWI case.

Suppose the officer's report says our hypothetical driver was visibly unsteady. On body camera, however, the driver steps out of the vehicle normally and stands beside the road without obvious difficulty.

The report describes slurred speech. On video, the driver's answers appear understandable and responsive.

The report says the driver demonstrated poor coordination. The video shows some mistakes during field sobriety testing, but the driver generally follows the officer's instructions and completes the exercises.

That does not make the chemical test disappear.

It does create a question the defense needs to explore: Why does the person shown on the video appear different from the person described in the police report?

A jury may eventually be able to make that comparison, too.

What If the Video and Chemical Test Point in Different Directions?

This is where DWI cases become more complicated than many people expect.

A person does not necessarily have to look dramatically impaired to have an alcohol concentration at or above the statutory level. At the same time, the State may rely on the driver's physical appearance and behavior as additional evidence supporting the officer's conclusion.

When those categories of evidence conflict, I want to understand why.

Maybe the chemical evidence is reliable and provides the State with a strong case despite favorable-looking video.

Maybe there is a legitimate issue involving the chemical test that becomes more important because the video does not show the level of impairment described by the officer.

Or perhaps the driver appears relatively composed during some portions of the recording but shows more significant problems during another portion.

The answer comes from reviewing the complete case, not selecting whichever piece of evidence appears most favorable.

One Good Moment on Video Does Not Win a DWI Case

Clients sometimes focus on one part of the video that they believe helps them.

They may tell me, "I didn't stumble when I got out of the car," or, "I answered all of his questions."

Those facts may matter, but I need to watch the entire recording.

A DWI case that looks favorable during the first five minutes can change at a crucial point later in the investigation. The driver may have substantial difficulty during a field sobriety test. A statement may create a problem. Another camera angle may show something that was not obvious before.

The reverse can also happen. A police report that initially sounds extremely damaging may become less persuasive after the complete recording is reviewed.

That is why I want to see every available second of the relevant video before making important recommendations.

What Would a Jury Actually See?

When I evaluate conflicting DWI evidence in Texas, I also think about how that evidence may look in a courtroom.

A police report can contain strong conclusions, but jurors may have an opportunity to watch the encounter themselves. They do not necessarily have to accept an officer's characterization of a driver's behavior if the recording allows them to form their own impression.

Suppose the prosecutor argues that the driver was visibly intoxicated.

The defense can ask the jury to watch the video.

Does the driver look like someone who cannot safely control his mental or physical faculties? Does the video support the descriptions in the report? Are the alleged signs of impairment obvious, or does the officer's characterization make them sound more severe than they appear?

Those can become important trial questions.

But the defense must still confront unfavorable evidence. If a chemical test is admissible and reliable, I have to account for it rather than pretending favorable video makes it irrelevant.

Conflicting Evidence Can Affect Plea or Trial Decisions

The purpose of this review is ultimately to make better decisions.

Suppose the police report is damaging, the video largely confirms it, the field sobriety tests were properly administered, and the chemical testing appears reliable.

That may be a case where negotiating with the prosecutor deserves serious consideration.

Now change the hypothetical.

The police report describes substantial impairment, but the video does not support many of those observations. The field sobriety testing contains problems. The driver's overall behavior appears normal, and there is a legitimate issue involving the chemical evidence.

That may be a very different case.

Trial should not be recommended simply because one piece of evidence is favorable. Likewise, a client should not assume a plea is necessary simply because one laboratory result or police report looks damaging.

The decision should come after evaluating how all of the evidence fits together.

Why I Don't Evaluate DWI Evidence in Isolation

A DWI investigation is a collection of evidence.

The driving behavior matters. The initial interaction with the officer matters. Field sobriety testing matters. The police report matters. Chemical evidence matters. Body camera and dash camera footage matter.

Most importantly, the relationships between those pieces of evidence matter.

If everything points in the same direction, that tells me something about the strength of the State's case.

If the evidence conflicts, I need to determine whether those inconsistencies create reasonable questions about the prosecution's theory.

That is why I am reluctant to tell someone whether they have a "good DWI case" based solely on a breath-test number, something written in a police report, or their memory of how well they performed on the roadside.

I need to see the evidence.

How I Would Evaluate This Hypothetical DWI Case

Returning to our hypothetical driver, I would not immediately conclude that the case should go to trial simply because the body camera looks better than the police report.

I would investigate the discrepancy.

I would review the entire recording, not selected portions. I would compare the officer's written observations with what the cameras show. I would examine how the field sobriety tests were administered. I would review the chemical testing and any issues surrounding the collection or analysis of the sample.

Then I would ask the question that ultimately matters: How likely is the State to prove intoxication beyond a reasonable doubt?

Sometimes that analysis leads to negotiation.

Sometimes it leads to trial.

The important point is that the recommendation comes after the evidence has been tested against itself.

Talk With a McKinney DWI Defense Attorney

If you have been charged with DWI in McKinney, Collin County, or the surrounding area, do not assume one piece of evidence determines the outcome of your case.

A damaging police report does not necessarily tell the entire story. A favorable-looking video does not necessarily eliminate other evidence. And a chemical test needs to be evaluated as part of the complete investigation.

I review the police report, chemical testing, body camera footage, dash camera footage, field sobriety testing, and other available evidence before recommending whether a case should be negotiated or prepared for trial.

Contact my office to schedule a confidential consultation.

Citations

https://statutes.capitol.texas.gov/Docs/PE/htm/PE.49.htm

https://www.nhtsa.gov/risky-driving/drunk-driving