[ConservingFreedom]

Already covered by the article: '“I think it would definitely be helpful as a roadside test, but just like with alcohol, you still need to bring someone back to headquarters and get results you can prosecute them on,” said Southold Police Chief Martin Flatley. [...] “But any tool like that, that helps us to identify an impairment, is useful.”'

[eyeamok]

I saw that in the article, My point is Most people think they are Required to take these tests, and the Police will ALWAYS LIE and tell you it is required and if you refuse that they will arrest you, ALWAYS refuse, for it absolutely removes “reasonable suspicion” if arrested. They have NO Probable Cause with no evidence, your field sobriety test is the EVIDENCE they desperately need to make an arrest. Otherwise just about any lawyer will have the case dismissed for False Arrest and all evidence gathered after said false arrest is NO GOOD.