How a Breathalyzer Test Can Fail

I think that our society today relies way too much on the computer technology. We think that whatever information a computer provides that it’s the final say. This applies to breathalyzer machines also. How do we know whether or not these breathalyzer tests are always right?

Let’s pretend that I go out and have a couple beers, drive home and get stopped at a sobriety checkpoint. The officer administers a breath test on me and it shows that I have a BAC of .09. Now, in reality my blood alcohol level is .02, but for some reason it was showing .09. So, I would be arrested for a DUI because the machine showed that I had a BAC higher than the legal limit. How did this happen?

Here are some reasons why a breathalyzer test may provide inaccurate results:

1) The interference of radio frequencies – an electronic device that is close to the breathalyzer machine can interfere with the energy emitted by the machine which provides incorrect results

2) Officers fail to provide regular maintenance on the machines – any machine that doesn’t receive frequent maintenance is due to break down sooner or later

3) The officer who administers the test may not use the machine properly which can alter the test result

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