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What unit of measurement is used to measure breath alcohol concentration?

The unit of measurement for breath alcohol is grams of alcohol ...

How long after drinking alcohol can we detect it with a breath alcohol tester?

It depends on how much the person had to drink, and how long ago they drank...

What is an evidential breath alcohol test? Do we need to use the same kind of breath alcohol tester that our local police department uses in order for test results to hold up in court?

An evidential breath alcohol tester is defined as being listed on the DOT Conforming Products List of Evidential Breath Measurement Devices.

What is a "passive" alcohol test?

Passive alcohol tests measure alcohol in the air ...

Is there a difference in performing a passive test and a direct breath alcohol test?

When performing a direct breath alcohol test, the subject blows into a mouthpiece ....

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