How a Lancaster DUI Attorney Can Challenge Breathalyzer Results

Being charged with driving under the influence can be overwhelming, especially when Breathalyzer results are being used as evidence against you. Many drivers assume that a failed Breathalyzer test automatically leads to a conviction, but that is not always the case. Breath testing devices can produce inaccurate results under certain circumstances.

At Chieppor & Egner, our Lancaster criminal defense lawyers help clients understand their rights and develop strong defense strategies tailored to their unique situations. Challenging Breathalyzer evidence is often an important part of building a DUI defense.

Common Problems With Breathalyzer Results

While Breathalyzer devices are widely used by law enforcement, they are not infallible. Breath-testing devices require routine maintenance to ensure they are functioning correctly. If a machine has not been properly serviced or tested according to established standards, the results it produces may be unreliable. 

Additionally, certain medical conditions can also produce falsely elevated readings. For example, individuals suffering from acid reflux may experience alcohol vapors rising from the stomach into the mouth, potentially affecting the test. Other health conditions and medications may similarly influence the outcome of a breath test.

Environmental factors can also play a role. Exposure to certain chemicals or fumes in the surrounding area can sometimes interfere with Breathalyzer equipment. If any of these issues are present, the Breathalyzer results may not accurately reflect a driver’s blood alcohol concentration, potentially creating important defenses in a DUI case.

Why Challenging Breathalyzer Evidence Matters

Prosecutors often rely heavily on Breathalyzer results when pursuing DUI charges. However, a Breathalyzer reading is only one piece of evidence in a case. Successfully challenging the accuracy or reliability of the test may weaken the prosecution’s case and potentially lead to reduced charges, alternative resolutions, or even dismissal in certain situations. 

A skilled DUI attorney understands how to gather evidence to support a client and identify weaknesses in the evidence presented by the prosecution.

Examining Police Procedures During a DUI Investigation

In addition to reviewing the Breathalyzer itself, a Lancaster DUI attorney will evaluate whether law enforcement followed all required procedures during the investigation. Officers must adhere to specific rules when conducting traffic stops, administering field sobriety tests, and collecting chemical test evidence. An attorney may investigate:

  • Whether the traffic stop was legally justified
  • Whether the officer properly observed the driver before administering the test
  • Whether testing protocols established by Pennsylvania law were followed
  • Whether the driver’s constitutional rights were protected throughout the investigation

Any procedural mistakes could affect the admissibility or reliability of the Breathalyzer evidence.

Contact Trusted Lancaster Criminal Defense Lawyers Today

If you have been charged with DUI, it is important to seek legal guidance as soon as possible. With years of experience in the courtroom as former prosecutors, attorneys Jonathan Chieppor and Alex Egner have the necessary insight into how all sides operate during criminal cases. We can explain your legal options and fight to protect your future. 

Contact Chieppor & Egner online or call 717-393-1400 to schedule a free consultation with our team. We’re proud to represent residents of Lancaster County, Berks County, and York County.