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The Difference between a Breathalyzer Test and a Blood Test for DWI

The consumption of alcohol or illicit drugs will impair judgment and decision-making in most situations. Driving while intoxicated can and will cause accidents, which can result in property damage, injury and death.

If you are stopped by a police officer for the suspicion of drunk driving, the majority of the time he or she will ask you to take a breathalyzer test or submit a blood test to measure your BAC (blood alcohol content).

Breathalyzer and blood test for DWI


Police officers use a breathalyzer to measure to read the BAC level and measure the alcohol content in a person’s breath. This is the primary source of alcohol testing and the most convenient method for police officers. However, the results of a breathalyzer test are never as accurate as a blood test.

In a blood test, blood samples that are collected from the suspected driver go to a testing lab. A blood test for a DWI is more accurate. Drivers should remember that they are rightfully allowed to request a blood test if they disagree with the results of the breathalyzer test.

Challenge the results of DWI tests with help from a Milford, CT DWI Attorney


Attorney George W. Ganim, Jr. can assist clients who are facing a DWI charge in Connecticut. Call Attorney Ganim at (203)713-8383 or (475)298-1377 for a free consultation.

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Milford: 86 Cherry Street, Milford, Connecticut 06460
Bridgeport: 3354 Main St, Bridgeport, CT 06606
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