[Gabz]

The breathalyzer test is, in fact, a DNA test. Try figuring out a way of no DNA being transferred to that tube you are blowing into...........

[Myrddin]

The breathalyzer test is, in fact, a DNA test. Try figuring out a way of no DNA being transferred to that tube you are blowing into...........

You would be laughed out of court if you tried to claim that is a valid method of DNA collection. The breathalyzer is nothing but a rudimentary gas chromatograph.