Editing Drug test (section)

===Breath test===
{{main article|Breathalyzer}}
[[File:Breathalyzer on citizen.jpg|thumb|204x204px|Breath test being used on a volunteer.]]
Breath test is a widespread method for quickly determining alcohol intoxication. A breath test measures the alcohol concentration in the body by a deep-lung breath. There are different instruments used for measuring the alcohol content of an individual though their breath. [[Breathalyzer]] is a widely known instrument which was developed in 1954 and contained chemicals unlike other breath-testing instruments.<ref>{{Cite book|title = Forensic science: From the crime scene to the crime lab.|last = Saferstein|first = R.|publisher = Pearson Education Inc.|year = 2013|isbn = 978-0131391871|location = Upper Saddle River|pages = 295–300}}</ref> More modernly used instruments are the infrared [[Spectrophotometry|light-absorption devices]] and [[fuel cell]] detectors, these two testers are microprocessor controlled meaning the operator only has to press the start button.

To get accurate readings on a breath-testing device the individual must blow for approximately 6 seconds and need to contain roughly 1.1 to 1.5 liters of breath. For a breath-test to result accurately and truly an operator must take steps such as avoiding measuring "mouth alcohol" which is a result from regurgitation, belching, or recent intake of an alcoholic beverage.<ref>{{Cite book|title = Forensic science: From the crime scene to the crime lab.|last = Saferstein|first = R.|publisher = Pearson Education|year = 2013|isbn = 978-0131391871|location = Upper Saddle River|pages = 295–303}}</ref> To avoid measuring "mouth alcohol" the operator must not allow the individual that's taking the test to consume any materials for at least fifteen minutes before the breath test. When pulled over for a driving violation if an individual in the United States refuses to take a breath test that individual's driver's license can be suspended for a 6 to 12 months time period.