Understanding Field Sobriety Tests and Chemical Tests in a DUI Stop

Posted on December 12, 2013

Field Sobriety Test

A common question a client will ask a DUI lawyer in Redwood City has to do with the difference between chemical tests and field sobriety tests.

Your DUI Lawyer in Redwood City Will Explain Chemical Tests and Field Sobriety Tests

A DUI attorney in Redwood City will tell you that the most reliable method to determine blood alcohol concentration (BAC) is through chemical testing. Field sobriety tests are often based on the eye of the beholder.

Your DUI Lawyer in Redwood Will Tell You the Reasons an Officer Will Conduct Field Sobriety Tests

Your DUI attorney in Redwood city will explain that the field sobriety tests might not be as accurate as chemical tests, but they will serve to give the officer probable cause to make the traffic stop and arrest. They can also indicate impairment and a link between alcohol consumption and the way the vehicle was being driven.

A DUI Lawyer in Redwood City Will Describe the Different Kinds of Field Sobriety Tests

Your DUI lawyer in Redwood City will list the types of field sobriety tests a law enforcement officer might give. They include:

  • Asking questions designed to distract and interrupt the driver
  • The driver touching the tip of the finger to the nose
  • Give the finger count test
  • Having the driver say or write the alphabet
  • Counting down from 100
  • The Romberg Balance Test
  • Horizontal Nystagmus Test in which the officer will use an object moved in front of the driver’s eyes
  • One leg stand test

A DUI lawyer in Redwood City will be familiar with all of these tests and more.

Contact a Qualified DUI Lawyer in Redwood City

If you have questions about field sobriety tests, a DUI attorney in Redwood City can help. Call Silveira Law at (415) 795-3890 today.