Breathalyzer Test
- Police often require suspects to give a breath sample to determine their level of intoxication
- These devices measure the alcohol content of air exhaled from deep in the lungs
- Although there are several different types of devices, blowing air through a small tube is required of all of them
- It is important to note that the results of a breathalyzer give an estimate of actual blood alcohol content
- However the estimate is extremely accurate and is often a crucial piece of evidence for the prosecution
- Breathalyzer devices must be carefully calibrated every 6 months