Police typically use handheld breathalyzers, also known as portable breath testers (PBTs), to measure blood alcohol content. These devices analyze a person's breath to estimate the level of alcohol in their bloodstream.
No, breathalyzers test for the presence of alcohol in a person's breath, not drugs. To detect drugs such as marijuana, cocaine, or opioids, different tests like blood, urine, or saliva tests are used.
Many police stations have implemented digital breathalyzers, but there are still a few who use the older types. The digital breathalyzers are much more accurate however. Most police agencies use digitial breathalyzers. These are more accurate than the older ones.
The first breathalyzer was invented in 1954 by Robert Borkenstein, a police researcher in Indiana, USA. It was designed to measure a person's blood alcohol content by analyzing their breath. It has since become a widely used tool by law enforcement agencies to help detect and prevent drunk driving.
"Different police departments started using DUI breathalyzers at different times. Most of them started in the 1980s, others didn't get them until the 90's."
Breathalyzers used by the police department detect alcohol, and nothing but alcohol.
The only drug that affects your blood alcohol content is alcohol.
BAL in medicine and in police work means "blood alcohol level". BAC in medicine and in police work means "blood alcohol content". A BAL/BAC should be zero (0) in a person who has not consumed (drunk) any alcohol.
A breathalyzer is important because that is how the police officer will test your Blood Alcohol Content (BAC) to see if you are over the legal limit for driving.
There are certain assumptions breathalyzers make as to the average person's ratio of alcohol in their breath compared to alcohol in their blood. The basic problem is that no person is actually average and the conversion factors not only vary between people, but change over time for a given individual. The only true way to determine blood alcohol content is to draw and analyze the blood. For more on the subject, see the related link below. ADDED: The name "Breathalyzer" has become a common slang term loosely applied to describe any alcohol-testing device. If you are referring to the hand held 'screening devices' used by officers on the street - they are accurate enough for probable cause to administer further tests to you to determine if you are legally impaired. If you are referring to the testing device that is used at police stations or in alcohol testing mobile vans - after long usage and many court challenges, they are considered to consistently be accurate enough for their results to be widely accepted nationwide as prima facie evidence of intoxication/impairment.
It is not illegal to drink alcohol in cars in Victoria. It is illegal to drive a car in Victoria with a blood/alcohol content of 0.05% or higher.
Yes, of course.
A breath tester is used to determine the blood alcohol content one has when a police officer suspects a person of drinking and driving. It is more commonly known as a breathalyzer.