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Facts - Books - News    U.S. Facts Of Law:

The BAC Legal Limit

The blood alcohol content is the amount of alcohol concentrated in the blood also known as the BAC.  It is measured in grams per deciliter.  Generally, a BAC of 0.08 g/dL or higher is over the legal limit for operating a motor vehicle (DUI).

In measuring if one is over the BAC legal limit there are many variables affecting the amount of alcohol in the blood.  These include body weight, body fat, gender, nutrition and time since the alcohol was consumed.  A single drink my put a 100 lb. individual over the limit or it may take five drinks for a person weighing well over 200 lb.

The actual blood alcohol content or concentration can be measured by taking a blood sample and testing it in a laboratory.  In the field, law enforcement officers usually rely on a device called a breathalyzer which estimates the BAC by measuring the alcohol in the breath.  While not exact, it is estimated that the blood alcohol concentration as measured by these devices is within 15% of the actual number but may vary widely from brand to brand.

To measure the amount of impairment in the field, law enforcement officers will also generally administer what is called a "roadside sobriety test" or "field sobriety test".  These tests may involve several smaller tests to determine impairment and may include counting backwards, walking a straight line toe to heel, touching your index finger to your nose with your eyes closed, standing on one leg, following a moving finger with your eyes or others.

While a BAC of 0.08 g/dL is the legal limit, one should not assume that driving with lesser amounts of alcohol in the blood is as safe as driving sober.  Tests have shown that drivers with a BAC of only 0.05 g/dL is at a four times greater risk of being in an accident.

As blood alcohol content approaches double the legal limit a person will generally have a severe loss of motor control, balance, speech, judgment, vision and may suffer from vomiting.  As the BAC approaches 0.25 g/dL one generally will suffer from anxiety, be unable to walk without help, become incoherent, feel little pain from injury and is at risk of death from asphyxiation.  When a BAC of 0.40 is approached one will generally be at risk of unconsciousness and possible coma.  The risk of death from asphyxiation is pronounced.  Even higher BAC levels usually result in death without medical intervention.


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He Had So Much Alcohol In Him, He Could Have Died. Then He Drove Into Cars, F...
Miami Herald He had so much alcohol in him, he could have died. Then he drove into cars, Florida cops say Miami Herald After the man threatened Daniel with his dog, the suspected drunk driver then ran away, police say. He laid down between two air conditioning units as officers began to search for him. A helicopter with the Henderson County Sheriff39s Office found him Florida man arrested for DUI had blood alcohol level of .316, deputies sayFox News Man arrested for DUI had blood alcohol level of .316, deputies sayFOX 5 Atlanta Man arrested for DUI had blood alcohol level of .316, deputies say Fox 32 Chicago Baltimore Post Examiner all 14 news articles raquo

Former Bus Driver, Convicted Of Drinking While Driving Kids, Found Asleep Beh...
WRTV Indianapolis Former bus driver, convicted of drinking while driving kids, found asleep behind wheel with .36 BAC WRTV Indianapolis INDIANAPOLIS A man previously convicted of driving a school bus full of children while intoxicated was found asleep behind the wheel of a van Wednesday night with a reported blood alcohol content more than four times the legal limit. Phillip K and more raquo

Toxicology Reports: Driveraposs BAC Nearly Twice Legal Limit In Dea KHQ Rig...
KHQ Right Now Toxicology reports: Driver39s BAC nearly twice legal limit in dea KHQ Right Now The Kootenai County Sheriff39s Office Traffic Team and the Kootenai County Coroner39s Office have concluded their investigation into the January 13, 2018 crash at the Hayden Lake Boat Launch, which resulted in the death of 34 year old Christopher Hayden Lake drowning victim had blood alcohol level nearly twice KXLY Spokane all 3 news articles raquo

Police: Driver Who Hit 4 Parked Cars Had BAC More Than 4 Times Legal Limit B...
Buffalo News Police: Driver who hit 4 parked cars had BAC more than 4 times legal limit Buffalo News Police: Driver who hit 4 parked cars had BAC more than 4 times legal limit. By Aaron Besecker Published Mon, Mar 19, 2018. Share middot Tweet EMAIL. A driver who police said crashed into four parked cars Sunday morning on Buffalo39s West Side is accused

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Facts of Law about the dui and dwi drunk driving breath alchohol content legal limit

Facts of Law - DUI DWI and Drunk Driving BAC Legal Limit