Understanding Breath and Blood Tests

The administration of breath and blood tests is one of the methods that law enforcement utilizes to determine if a driver is under the influence of alcohol or drugs. Both tests measure the level of alcohol within the person, known as the blood alcohol concentration (BAC). If the person's BAC meets or exceeds .08% on either test, the driver can be arrested and charged with a DWI offense. In the event that you are arrested or charged for DWI following a failed breath or blood test, or even a field sobriety test, it is absolutely vital to immediately contact a Plano DWI attorney who can assist with your case There is potential that the evidence gathered against you was obtained illegally, or even that the methods used to implement the tests did not coincide with state laws and regulations.

Breath tests, which are commonly referred to as "breathalyzer tests" measure the content and presence of alcohol in a person's body indirectly by measuring the amount of alcohol on a person's breath. This method can be very inaccurate, and especially in the field is used primarily as a prescreening device to establish probable cause for an arrest of a suspicious and potentially intoxicated driver.

Blood tests are a direct and highly accurate way for law enforcement to determine the actual content of a person's blood. Unlike breath tests, which have high potential for inaccuracies, blood tests are generally very precise. These tests too though can be subject to human error or other mistakes that can lead to incorrect results and so can later be challenged by an experienced attorney if they are used as evidence in trial.

DWI Attorney Serving Plano

If you or a loved one has been charged with a DWI following a failed breath or blood test you will need immediate help from an attorney with experience and understanding of DWI cases. At the Zendeh Del Law Firm we will dedicate our time and significant experience to helping you win your case by challenging any inappropriate, inadmissible or illegally obtained evidence, as well as building the strongest case we can for your case.

Contact a Plano DWI Attorney at our firm today if you've failed a breath or blood test and need legal representation for your case!