You have probably seen DWI testing online or on television before. A person is pulled over by a police officer and is asked to participate in certain physical and chemical tests. They may be asked to recite the alphabet backwards or submit to a breathalyzer test. No matter the circumstances, it’s important you thoroughly understand DWI testing so you’re prepared if an officer pulls you over.
Law enforcement use a variety of tests to measure your impairment level. An officer will probably first ask you to participate in field sobriety testing. These physical exercises are designed to determine if your physical and mental faculties are impaired. Police officers may also use chemical testing during a DWI stop, which is where they ask for a urine sample. breathalyzer test or a blood draw.
A failed DWI test can lead to an arrest. If you or someone you know has failed or submitted to DWI testing, it’s imperative you contact an experienced criminal defense attorney.
The consequences of a DWI can be stressful and costly. It’s likely the judge will impose certain conditions on your sentencing such as DWI classes or the installation of an ignition interlock device (IID). Additionally, a DWI conviction could lead to expensive fines and even prison.
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Overview of DWI Testing in Texas
Police officers tend to start with field sobriety tests when they pull someone over for DWI. These physical activities were created by law enforcement to identify signs of intoxication. You may have seen a variety of field sobriety tests on television, but only the three standardized by the National Highway Traffic Safety Administration (NHTSA) are admissible in court.
Listed below are the three field sobriety tests created by NHTSA.
Field sobriety testing is still a developing field based on questionable science. It’s been proven that certain environmental or external factors could affect your results. The tests are also universal, so they don’t take into account factors such as disabilities, age or physical ability. Because of this, the majority of attorneys question the validity of field sobriety tests.
Listed below are factors that can cause a completely sober person to fail a field sobriety test.
Law enforcement may ask you to participate in field sobriety tests, but the most valuable evidence comes from chemical testing. Officers use three different types of chemical tests to measure your blood-alcohol concentration (BAC). If you have a BAC of .08 or higher, then you’ll legally be considered intoxicated and charged with DWI.
The following are the three types of chemical tests utilized by law enforcement.
The chemical tests administered by law enforcement are by no means flawless. Many sober people have failed chemical testing because of outside factors. Additionally, badly maintained equipment or mishandled samples could also lead to inaccurate results. A skewed test result could be pivotal evidence for the prosecution, meaning it could devastate your case.
Listed below are some common issues with DWI chemical testing.
It’s overwhelming when you’re pulled over for DWI. However, it’s important to understand you have choices. You’re not obligated to undergo field sobriety or chemical testing simply because an officer asked you to. They may even threaten you with jail or a suspended license, but what they won’t tell you is that will happen anyway if you fail DWI testing.
It’s important you understand there are some consequences to refusing chemical tests. Refusing blood, urine or breath analysis tests is a violation of implied consent laws. These laws state that you are implicitly agreeing to chemical testing if you drive on Texas public roads. This means you could have your license suspended for a period of time if you refuse chemical testing. If the officer has probable cause you’re intoxicated, then you could also be arrested.
No one wants to be arrested or have their license suspended. However, both of those are much easier to handle than a DWI conviction. You’ll only be in jail for a short period of time and the prosecution will have no concrete evidence against you. Without that valuable scientific evidence, it will be hard for them to win your case.
You can also contest your license suspension with an administrative license revocation (ALR) hearing. At the hearing you can employ legal representation to fight your license suspension. It’s important you act quickly though. You only have 15 days after arrest to file a request for an administrative license revocation hearing.
Instructor Guide to DWI Testing – Visit the official website of the National Highway Traffic and Safety Administration (NHTSA) to access their instructor guide for DWI detection. Learn more about standardized field sobriety tests, NHTSA data and signs officers look for.
Administrative License Revocation (ALR) Hearing – Visit the official website of the Texas Department of Public Safety (DPS) to learn more about their administrative license revocation (ALR) program. Access the site to read more about the consequences of refusing to submit to testing, the suspension terms from refusing and more.
If you or someone you know has been charged with DWI, it’s imperative you seek legal representation. You could have undergone a faulty field sobriety or chemical test during your stop. If you refused testing, then you will need to contest your suspended license with an administrative license revocation hearing.
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This article was last updated on March 13th, 2019.