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Police Officer with Body Worn Camera

The Role of Body Camera Video in DUI/DWI Arrests

Guilfoil Law Group Nov. 14, 2024

In recent years, the use of body-worn cameras (BWCs) by law enforcement officers has become more widespread, playing an important role in increasing transparency and accountability. One of the key areas where body camera footage is making a significant impact is DUI (Driving Under the Influence) or DWI (Driving While Intoxicated) arrests

What Are Body-Worn Cameras (BWCs)?

Body-worn cameras are small, portable devices that police officers attach to their uniforms, usually on the chest or shoulder, to record audio and video of their interactions with the public. The primary goals of these cameras are to provide transparency, protect officers and citizens, and improve public trust in law enforcement.

Most body cameras are equipped with features such as night vision, wide-angle lenses, and continuous recording, confirming that all aspects of an encounter are captured accurately. These videos are often stored in secure databases and can be accessed by prosecutors, defense attorneys, and judges during a case.

How Do Body Cameras Impact DUI/DWI Arrests?

Body camera footage has the potential to significantly influence the outcome of DUI/DWI arrests. Here are several ways this technology plays a key role:

Providing Objective Evidence

Body cameras offer an unfiltered, real-time account of the interactions between law enforcement and the suspect, starting from the moment the officer pulls over the driver. This video evidence serves as an objective record, free from the potential bias or error that can accompany written reports or verbal testimony.

For example, body camera footage can capture:

  • The suspect’s driving behavior that led to the stop (in cases where the officer’s dashboard camera is linked to the body camera).

  • The officer’s initial approach and communication with the suspect.

  • The suspect’s behavior, speech, and demeanor during the traffic stop, which can indicate impairment or sobriety.

  • Field sobriety tests (FSTs), which are often administered on the roadside to assess a driver’s coordination and judgment.

Documenting Field Sobriety Tests (FSTs)

Field sobriety tests are a critical component of DUI/DWI arrests. They include tests such as the Horizontal Gaze Nystagmus (HGN), the walk-and-turn, and the one-leg stand. These tests help officers determine whether the driver is impaired based on their ability to follow instructions, maintain balance, and exhibit motor coordination.

Body camera footage of FSTs provides a visual record that can be closely reviewed during the case. This is especially important in disputes about how the tests were conducted and whether the results were interpreted fairly. For example:

  • Was the road surface uneven, making it difficult for the driver to maintain balance?

  • Was the driver wearing footwear that made it hard to walk in a straight line?

  • Did the officer provide clear and accurate instructions for each test?

Without body camera footage, disputes about these factors often rely on conflicting testimonies from the officer and the defendant. However, with video evidence, the court can see exactly what happened during the test, making it easier to resolve such disputes.

Recording Breathalyzer and Chemical Tests

In some DUI/DWI arrests, officers may administer breathalyzer tests to measure the driver’s blood alcohol concentration (BAC). Body camera footage often captures the entire process, including:

  • The officer’s explanation of the test and the legal consequences of refusing it.

  • The driver’s performance during the test.

  • The results of the breathalyzer or refusal to take the test.

This video evidence can help determine whether the test was conducted according to proper protocols. If the officer fails to follow the correct procedures, the defense may use this to challenge the admissibility of the test results in court.

Clarifying Officer and Suspect Behavior

In any arrest situation, there can be questions about how the officer and the suspect behaved. In DUI/DWI cases, these questions often arise when the suspect challenges the arrest, claiming that the officer violated their rights or used excessive force. 

Body camera footage can provide a clear account of the officer’s conduct during the arrest, demonstrating whether they acted within the bounds of the law.

Similarly, the footage can capture the suspect’s behavior, which may be used to support or refute claims of intoxication. If the suspect appears cooperative and shows no obvious signs of impairment, the defense may argue that the arrest was unwarranted. 

On the other hand, if the video shows erratic or aggressive behavior, slurred speech, or an inability to follow instructions, it could strengthen the prosecution’s case.

How Does Body Camera Footage Help the Prosecution?

Prosecutors can use body camera footage to build a stronger case against individuals charged with DUI/DWI. Some of the ways it helps include:

Strengthening the Officer’s Testimony

Body camera footage can corroborate the arresting officer’s testimony by providing visual and audio evidence that supports their version of events. This can include evidence of impaired driving, refusal to cooperate with field sobriety tests, or erratic behavior during the traffic stop.

Prosecutors often rely on officer testimony to establish probable cause for the arrest, and body camera footage helps reinforce the credibility of that testimony. This visual evidence may also discourage defendants from falsely claiming that the officer acted improperly or that the arrest was unjustified.

Refuting Common Defenses

Body camera footage can be used to refute common defenses in DUI/DWI cases, such as claims that:

  • The driver was not actually impaired at the time of arrest.

  • The officer did not have reasonable suspicion to pull the driver over.

  • The field sobriety tests were conducted unfairly or inaccurately.

For instance, a defendant may claim they were stopped without reasonable suspicion. However, the footage from the body camera and the patrol car’s dashcam may show the defendant swerving, speeding, or committing other traffic violations that justified the stop.

Encouraging Plea Deals

When defendants are presented with clear video evidence of their intoxication or poor performance on field sobriety tests, they may be more inclined to accept a plea deal rather than take their chances at trial. This can help prosecutors resolve cases more efficiently and avoid lengthy and expensive court proceedings.

How Does Body Camera Footage Help the Defense?

While body camera footage can be a powerful tool for the prosecution, it can also provide critical evidence for the defense. Here’s how:

Challenging the Officer’s Conduct

If the arresting officer did not follow proper procedures during the traffic stop or arrest, body camera footage can be used to challenge the legality of the arrest. 

For example, if the officer failed to provide clear instructions during a field sobriety test or improperly administered the test, the defense can argue that the results should be excluded from the evidence.

Additionally, footage that shows the officer behaving aggressively or violating the suspect’s rights can be used to challenge the validity of the arrest or the admissibility of certain evidence. 

For example, if an officer conducted an unlawful search or failed to read the suspect their Miranda rights, this could lead to a suppression of key evidence, such as incriminating statements.

Highlighting External Factors

Body camera footage can also reveal external factors that may have affected the suspect’s behavior or performance on field sobriety tests. For instance:

  • Weather conditions: Was it raining or windy, making it difficult for the driver to stand or walk in a straight line?

  • Environmental factors: Was the stop conducted in a poorly lit area, or were there other distractions that could have influenced the suspect’s behavior?

By highlighting these factors, the defense can argue that the driver’s performance on the field sobriety tests was compromised, and not necessarily a result of intoxication.

Supporting Claims of Sobriety

In some cases, body camera footage may support the defendant’s claim of sobriety. For example, if the video shows the driver speaking, following instructions, and performing well on the field sobriety tests, the defense can use this footage to argue that the arrest was unwarranted.

Potential Limitations of Body Camera Footage

While body camera footage can be highly useful in DUI/DWI cases, it’s not without its limitations. Technical issues, such as malfunctioning cameras, poor lighting, or obstructed views, can affect the quality of the footage and leave room for interpretation. 

Additionally, not all police departments have mandatory body camera policies, which means that footage may not be available for every arrest.

Turn to a Defense Lawyer for Help

My name is J. Matthew Guilfoil, and I’m committed to offering quality DUI defense through the Guilfoil Law Group in Kansas City, Missouri. If you need consultation in the surrounding areas of Clay County, Platte County, and Jackson County, call today.