Being arrested for Boating Under the Influence (BUI) in South Carolina can be confusing and worrisome, especially if you believe the Breathalyzer results were wrong. Breathalyzers are often used by law enforcement to measure a person’s blood alcohol content (BAC), and the results can be used as evidence to support a BUI charge. However, there are several ways to challenge Breathalyzer results in South Carolina if you think they are incorrect. Knowing how these machines work, and understanding their possible errors, can help you challenge their accuracy if you are facing a BUI charge. At, The Bateman Law Firm, we are here to guide you through the legal process and help you navigate the complexities of your case.

350+ Reviews
5.0 Star Average

avvo clients choice-DUI

Understanding Breathalyzer Tests in South Carolina BUI Arrests

A Breathalyzer test is a machine that measures the amount of alcohol in your breath. When a person blows into a Breathalyzer, the device estimates the alcohol concentration in their breath and converts this to an approximate BAC. In South Carolina, the legal BAC limit for operating a boat is 0.08 percent. If a Breathalyzer test shows a BAC of 0.08 or higher, it could lead to a BUI charge, which may include serious penalties, such as fines, jail time, or losing boating privileges. However, Breathalyzers are not perfect devices and do not always produce accurate results. Various factors can cause a Breathalyzer test to show a higher BAC than a person’s actual level of intoxication, giving possible grounds to challenge its results.

Potential Problems with Breathalyzers in BUI Cases

One of the biggest reasons to challenge a Breathalyzer result in a BUI case is that the device may have malfunctioned or been used improperly. Although Breathalyzers are commonly used tools, they are very sensitive and need to be handled correctly to provide reliable readings. If a Breathalyzer is not regularly maintained, or if the officer administering the test does not follow specific procedures, the results may be unreliable. It is also important that the device is properly calibrated. Calibration means setting the device to read alcohol levels accurately. When a Breathalyzer is not calibrated as it should be, it may overestimate or underestimate BAC, leading to unfair results for the person tested.

Improper Administration of the Test

Improper administration of a Breathalyzer test can also affect the results. Law enforcement officers must follow precise instructions when conducting a Breathalyzer test to ensure the results are correct. If the officer does not give you the right instructions or does not properly administer the test, it may be possible to argue that the results are inaccurate. For example, a Breathalyzer test requires the person to blow into the device for a specific amount of time to get a correct reading. If the officer did not ask you to blow for the required duration, or if the officer failed to check that the machine was functioning before the test, these actions could make the results unreliable.

External Factors Affecting Breathalyzer Accuracy

External factors can also influence Breathalyzer results, which could give grounds for challenging them. Sometimes, a person’s BAC may appear higher on a Breathalyzer due to other factors unrelated to alcohol consumption. For example, using certain mouthwashes, breath sprays, or medications can cause the device to register alcohol in the person’s breath even if they have not been drinking. Conditions such as acid reflux, diabetes, and other medical issues can also impact the reading. These conditions may cause alcohol or other substances to accumulate in the mouth or digestive system, leading to a false-positive result on a Breathalyzer test. Knowing about these potential issues can be helpful when challenging the results in a South Carolina BUI case.

"He has an innate ability to convey to clients what really matters in their cases."

"John Bateman is my absolute go to peer in the legal field when it comes to questions about DUI. . . . He has an innate ability to convey to clients what really matters in their cases. As a fellow attorney, I highly recommend John to anyone in the SC or NC areas who are looking for... legal representation when facing a DUI charge."

M. Brock

"An excellent DUI attorney. He has received the same field sobriety test training as all police officers in the State"

"John is an excellent DUI attorney. He has received the same field sobriety test training as all police officers in the State, and also the same training as the people who are the instructors of the police officer training courses on field sobriety tests. He is very passionate about DUI's and I recommend him often to people who are facing serious charges in the upstate area."

P. Hammond

"He cares for each of his clients and works extremely hard to achieve results."

"Very knowledgeable and thorough in his preparation and representation of his clients. He cares for each of his clients and works extremely hard to achieve results. I highly recommend this lawyer."

C. Grubbs

Contaminants in the Breathalyzer Device

Another potential problem with Breathalyzer tests is contamination in the device itself. Breathalyzers are designed to detect alcohol, but they can sometimes pick up other chemicals that can interfere with readings. If the machine is not properly cleaned, other substances could remain in the device and affect the next person’s test result. For instance, if the Breathalyzer had been exposed to certain types of chemicals or substances from a previous user or from the testing environment, these might distort the reading, giving a false BAC result for the person tested.

How Officer Training and Experience Affect Breathalyzer Results

Law enforcement officers must undergo training to administer Breathalyzer tests correctly, but mistakes can still happen. The officer’s experience and skill level can impact the accuracy of the test. If an officer lacks experience with the Breathalyzer or is not fully trained, it could increase the likelihood of errors. Officers also need to observe the person for a certain amount of time before administering the test to ensure that nothing interferes with the results. If the officer does not follow this waiting period or fails to follow other protocols, you may be able to challenge the test results on these grounds.

The Importance of Reviewing Maintenance Records

One way to challenge Breathalyzer results is by looking at the maintenance and calibration records of the device. In South Carolina, law enforcement agencies must regularly maintain and calibrate Breathalyzer machines to make sure they work correctly. If you are facing a BUI charge, your attorney can request records of the device’s maintenance history to determine if it was properly serviced. If there are gaps in the maintenance records or evidence that the device was not calibrated according to schedule, it can cast doubt on the results. This information may be useful for arguing that the Breathalyzer reading was inaccurate or that the test results should not be used in court.

Legal Defenses for Challenging Breathalyzer Results

Several legal defenses may be used to challenge Breathalyzer results in a South Carolina BUI case. One approach is to question the reliability of the machine and whether it met the standards required for accuracy. By focusing on the issues of calibration, maintenance, and the conditions of the test, it may be possible to show that the results were not valid. Another defense is to highlight the officer’s failure to follow proper procedures. If the officer made any errors in administering the test, such as not observing you beforehand or not giving clear instructions, it could weaken the case against you. Additionally, if you have any health conditions or were exposed to certain substances before the test, these factors could be relevant in challenging the results. Explaining that the Breathalyzer reading may have been influenced by these external or internal factors could help reduce or dismiss the charges against you.

The Role of Legal Representation in BUI Cases

If you are dealing with a BUI charge in South Carolina, having legal representation is essential. A skilled attorney can evaluate all aspects of the Breathalyzer test to determine if there are valid reasons to question its accuracy. They can request the device’s maintenance and calibration records, review the officer’s actions during the test, and identify any other factors that might have affected the results. By building a strong case, an attorney can help you present a challenge to the Breathalyzer results, increasing your chances of a favorable outcome. They may also be able to negotiate with prosecutors to reduce charges or penalties, depending on the circumstances.

Exploring Other Evidence in a South Carolina BUI Case

Challenging the Breathalyzer results is often just one part of defending against a BUI charge. Other evidence in your case may also support your defense. For example, witness statements, video footage, and records of your behavior during the stop can all be helpful in building your case. If the officer had any reason to doubt the Breathalyzer results or if there were inconsistencies in the way the test was conducted, this could be important in supporting your argument. An attorney can help gather and analyze this additional evidence to make a stronger case for you in court.

Preparing for Your Defense in a BUI Case

Facing a BUI charge in South Carolina may feel overwhelming, but preparing a solid defense can make a difference. Challenging Breathalyzer results, along with reviewing all available evidence and identifying any errors in the process, can improve your chances in court. Understanding how Breathalyzer devices work and the ways they can produce false results is key to building an effective defense. Additionally, having an attorney who knows the laws around BUI and Breathalyzer testing in South Carolina can give you a better chance at a positive outcome. Remember, the sooner you start working on your defense, the more prepared you will be to face the charges. If you or someone you know is facing a BUI charge in South Carolina and believes the Breathalyzer results may be incorrect, reach out to The Bateman Law Firm. We understand the complexities of BUI cases and are ready to help you challenge any evidence that may be unfair or inaccurate. Our team will work with you to review every detail of your case, investigate any issues with the Breathalyzer test, and build a defense to protect your rights. Contact The Bateman Law Firm today for guidance and support as you take the next steps in defending yourself against these charges.

(864) 406-3004

Boating Under the Influence

How to Challenge Breathalyzer Results in South Carolina BUI Arrests