Roadside Sobriety Checkpoints are used by Law Enforcement primarily to deter alcohol-impaired driving. As the possibility or the perception of being apprehended while driving under the influence increases, intoxicated drivers are more likely to be deterred from driving. This is why Police frequently announce checkpoint times, locations and work with the press to make them highly visible.
Fewer alcohol-related crashes occur when sobriety checkpoints are implemented, according to a CDC report published in the December 2002 issue of Traffic Injury Prevention. Sobriety checkpoints were found to consistently reduce alcohol-related crashes, typically by about 20 percent.
Without the aid of the portable breathalyzer (PBT) as a preliminary screener, a determination of intoxication would be a more lengthy process. The breathalyzer measures BAC regardless of the subjects color, age, sex, and degree of alcohol tolerance. It is less intrusive and less confrontational than other methods.
If you know the rules of the road and have access to similar breath testing technology used by law enforcement you can better control and prevent drinking and driving in the first place.
Don’t drink and drive. But, if you do drink there are some things to consider.
It is not uncommon to hear both inexperienced and experienced drinkers say they can pass a field sobriety test. They suppose if they can walk a straight line and touch their nose, they can deceive police. What they fail to realize is that the array of physical tests that Law Enforcement use when combined with the results of a properly administered precision fuel cell breathalyzer are virtually fool proof.
According to NHTSA, studies indicate that large-scale sobriety checkpoint programs alone can reduce alcohol-related crashes by 20 percent.
The Blood Alcohol Content (BAC) limit for impaired driving is .08 in all 50 U.S. states. The .08 blood alcohol content limit was set because driving ability is impaired at this level for everyone. Actual impairment begins at much lower levels. Most of us just recognize the limit as .08 as measured by a breathalyzer but really don’t understand what this translates into in terms of number of drinks and over what time.
None of us can accurately predict our own BAC or that of others from the way we feel, how many drinks we’ve had, or how we behave by any other means than with an accurate blood or breath test. Various other techniques such as alcohol consumption charts are impractical to use and provide rough BAC estimates at best. At worst they can be positively misleading.
Driving ability is impaired at lower BAC levels than the legal DUI limit of .08. Virtually any amount of alcohol will cause some impairment in judgment, motor skills, and emotions. At levels as low as 0.02 percent, alcohol can affect driving ability and therefore crash likelihood. The probability of a crash begins to increase significantly at 0.05 percent BAC and climbs rapidly after about 0.08 percent.
Only a precision fuel cell breathalyzer is a practical and accurate "on the spot" means of providing you or those you care about with a good BAC estimate.