Not necessarily. While getting someones blood-alcohol level may be the preferred official method of determining impairment, there are obstacles associated with these tests. Sometimes, depending on the situation surrounding a crash, emergency response teams, Florida Highway Patrol, or police may not administer the test for blood alcohol. In other instances, the test might be given hours after the accident, at a time when the person had naturally processed the alcohol in their system.
Therefore, even though the person may have been drunk and impaired at the time of the crash, negligence or breach of protocol may render test results that are not accurate.