Motorists falsely arrested on DUI charges describe the life-ruining results

So your talking about roadside blood draws?
Roadside testing too I guess or will we just be arresting everybody and then waiting for the results to get back from a lab or (ye ods and little fishes) have Mr police officer use a little false positive prone test strip ?

Yeah no chance of a break in chain of custody or tampering there.
I bet you can see why nobody has put this idea forward as a practical measure!
imagine every traffic stop resulting in a barely trained jackbooted thug drawing blood?

I will however read that study if I can find it (and see what I can actually understand) but im sure you agree that one study does not good science or policy make.
I read the citation you provided but the sample size is a wee small and relies on a lot of self reporting.
Update : read the elevator pitch from the good doctor here https://www.ncbi.nlm.nih.gov/m/pubmed/17916224/
And it sounds like somebody is getting ready to sell something expensive to law enforcement .
unfortunately I can’t see his methodology Because It’s behind a paywall.