San Diego DUI Law Center

DUI Attorney San Diego – Testing Alcohol

Alcohol is a drug that affects the central nervous system.

Impairment from alcohol poisoning was originally defined by blood alcohol levels.

The legal limit for a San Diego DUI arrestee is 0.08% BAC. It is claimed by San Diego DUI Breath Test Manufacturers and Prosecution experts that San Diego DUI people showed measurable mental impairment at around 0.05% blood alcohol concentration (BAC).

Above this level, it has been found that motor functions purportedly deteriorate progressively with increased blood alcohol concentrations. This is open to scientific debate and varies from person to person. For the average San Diego DUI person, unconsciousness results by 0.40% BAC. Above 0.50% (BAC), basic body functions such as the breathing or the beating action of the heart can be depressed to the point that death can occur.

Blood was the medium originally used to measure alcohol concentrations in the human body.

San Diego DUI Blood tests theoretically offer the ability to accurately test the same San Diego DUI arrestee sample several times, if the sample is maintained properly, all San Diego DUI blood procedures are done properly and all California DUI regulations are strictly followed.

Some disadvantages with San Diego DUI blood analysis is that the collection process requires trained & authorized medical personnel, the sample collection is invasive, the analysis requires precise procedures by trained lab technicians , the results are not immediately available, the overall process is costly, etc.

In the 1930’s, the pioneers in the development of breath alcohol testing took advantage of the fact that alcohol was found in the deep lung breath in proportion the alcohol found in the blood.

San Diego DUI breath testing machines were manufactured to try to capture a sample of alveolar breath for analyses. Some of the early instruments were crude; breath analytical instruments have relatively evolved into low cost, often accurate, rapid analytical systems that more simply and painlessly collect a sample and estimate a result.

This result can sometimes be a reliable estimate of the San Diego DUI arrestee’s BAC as long as the operator is properly trained, all San Diego DUI collection & analysis procedures are properly followed, and all California DUI breath test regulations are strictly adhered to.

A San Diego Drunk Driving Attorney can help determine whether the subject San Diego California DUI test criteria exists and if the test is reliable & accurate.

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