Category «DUI Investigation»

Alcohol Absorption, Distribution, and Elimination

Alcohol Absorption Distribution and Elimination

Blood alcohol content (BAC) is of obvious importance in a driving under the influence (DUI / DWI) arrest. Where someone is accused of drinking and driving, the blood or breath alcohol level will prove to be some of the most damning – or exonerating – evidence against them. For those who are arrested for suspicion …

Chemical Testing

Chemical Testing

Chemical testing is a major concern in all DUI / DWI arrests. Even though there are many challenges to the validity of blood, breath and urine tests in drunk driving cases, people are often under the mistaken idea that if the machine says someone is above the legal limit, they are guilty, period. Fortunately for …

Numbers Backward Test

Numbers Backward Test

A driver under investigation for DUI / DWI is typically asked to take a field sobriety test such as counting numbers backward. Although the driver may think the test helps the officer decide whether to make an arrest, the truth is that the officer likely makes that decision long before the test begins. The best …

ABC Test

ABC Test

Police investigating a suspected DUI / DWI driver often require the motorist to complete a field sobriety test. One test employed by police is the ABC test. The officer typically uses the results to create probable cause for a drinking and driving arrest and to gather evidence for a drunk driving court case. It’s imperative …

Hand Pat Test

Hand Pat Test

The hand pat test is one of several field sobriety tests used by police when investigating a driver for DUI / DWI. Police don’t use the hand pat test to decide whether to arrest a motorist for driving under the influence – that decision likely has already been made before the test begins. It’s used …

Finger-to-Nose Test

Finger-to-Nose Test

The finger-to-nose test is a tactic employed by police investigating a suspected DUI / DWI or driving under the influence of drugs (DUID) case. Unfortunately, field sobriety tests such as the finger-to-nose test aren’t anything like the tests we took in school – they are designed to set up the driver for failure. Typically, an …

Rhomberg Balance Test

Rhomberg Balance Test

The Rhomberg balance test is a tool used by police officers who suspect a driver of DUI / DWI or driving under the influence of drugs (DUID). Unlike the tests we took in school, field sobriety tests such as the Rhomberg balance test are designed for failure. Usually, their sole purpose is to give the …

One-Leg Stand Test

One-Leg Stand Test

An officer who suspects a motorist of DUI / DWI usually conducts a field sobriety test to gather evidence for a drinking and driving court case. The one-leg stand test is one of three standardized field sobriety tests recognized by the National Highway Transportation Safety Administration (NHTSA). An experienced California drunk driving criminal defense attorney …

Walk and Turn Test

Walk and Turn Test

Police who suspect a motorist of DUI / DWI often direct the driver to perform a field sobriety test. One of three standardized field sobriety tests recognized by the National Highway Transportation Safety Administration (NHTSA) is the walk and turn test. The officer’s observations during the test are typically used to support a drunk driving …

Horizontal Gaze Nystagmus Test

Horizontal Gaze Nystagmus Test

Police officers who suspect a driver of DUI / DWI often conduct field sobriety tests to gather evidence to support the charge. One of three standardized field sobriety tests recognized by the National Highway Transportation Safety Administration (NHTSA) is the horizontal gaze nystagmus test. A California criminal defense lawyer experienced in defending drunk driving cases …

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