What Does Blow Trial Mean?

Explore the meaning of a blow trial in the legal system and how it can impact DUI cases. Learn about famous case studies and statistics on the success rate of challenging breathalyzer test results.


When it comes to legal terminology, the phrase ‘blow trial’ might leave many people scratching their heads. But for those in the legal profession, understanding what a blow trial is can be crucial in navigating the often complex world of criminal law.

What is a Blow Trial?

A blow trial, also known as a breathalyzer or DUI trial, is a legal proceeding in which a defendant challenges the results of a breathalyzer test. This test is commonly used to measure a person’s blood alcohol content (BAC) level to determine whether they are driving under the influence of alcohol.

Challenging the Results

During a blow trial, the defendant may argue that the breathalyzer test was faulty, improperly administered, or that the results were inaccurate. This can be done through the presentation of evidence, witness testimony, and expert testimony to support their case.

Case Studies

One famous case involving a blow trial is that of celebrity socialite Paris Hilton, who was arrested for driving under the influence in 2006. Hilton’s defense team challenged the validity of the breathalyzer test results, ultimately leading to a reduced sentence for the heiress.

  • Another notable example is the case of actor Mel Gibson, who was arrested for DUI in 2006. Gibson’s defense team successfully challenged the accuracy of the breathalyzer test results, resulting in a reduced charge and sentence for the star.


According to the National Highway Traffic Safety Administration, a breathalyzer test is conducted on an average of 1.5 million people each year in the United States. Of those tested, approximately 16% challenge the results in court, with a success rate of 30% in having the charges reduced or dismissed.


Understanding what a blow trial is and how it can impact a legal case is essential for anyone facing DUI charges. By challenging the results of a breathalyzer test, defendants may be able to mitigate the consequences of a DUI conviction and potentially avoid serious penalties.

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