Four Times the Legal Limit and Higher


A New York man was recently stopped for driving under the influence with a blood alcohol content of four times the legal limit.

Dennis L. Knapp was stopped when a person called 911 to report a “sick or intoxicated driver.”

Following the stop, Knapp was taken to the police station where he took a breath test that revealed a blood alcohol content of 0.32 percent, four times the legal limit of 0.08 percent.

Knapp was charged with felony aggravated driving while intoxicated and consuming alcohol in a motor vehicle and other traffic charges.

Knapp’s arrest and blood alcohol content got me wondering what some of the highest blood alcohol contents ever recorded were.

In 2012, an Iowa resident by the name of Justin A. Clark was arrested for driving under the influence and it was later determined that his blood alcohol content was 0.627 percent.

In 2007, Deana F. Jarrett of Washington was arrested for DUI after she crashed her vehicle into two parked cars. It was later determined that her blood alcohol content was 0.47 percent. At the time, it was the highest blood alcohol content in Washington’s history.

In 2008, Stanley Kobierowski of Rhode Island pled no contest to driving under the influence when he drove into a highway message board and it was later determined that his blood alcohol content was 0.49 percent. Local Police said that it was the highest BAC level for someone who was not dead.

Marguerite Engle of South Dakota stole a delivery truck and went on a joyride in 2009. When she was arrested, a breathalyzer revealed a blood alcohol content of 0.70 percent, breaking the previous South Dakota record of .56 percent.

The cake, however, goes to an Oregon woman by the name of Terri Comer. In 2007 Comer was arrested when she was found unconscious in her vehicle which she had driven into a snow bank. After being transported to the hospital, it was determined that Comer’s blood alcohol content to a whopping 0.72 percent.

In a California DUI prosecution, penalties generally increase when a person’s blood alcohol content is above a 0.15 percent. And it is generally accepted that the lethal blood alcohol content level for humans is between a 0.4 and 0.6 percent.

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