It was explained to me like this in the state I grew up in...<p>The law is to prevent dangerous driving. It doesn&#x27;t matter if you have a sip of beer or a 6 pack, if it impairs you, that&#x27;s against the law. HOWEVER, once your BAC reaches 0.08, that is proof enough of being impaired. Lower than 0.08, then they must show that you are impaired. And if you fail the sobriety field tests, you are impaired.<p>My point is, if you can&#x27;t tell if someone is impaired, even after field tests, then maybe they aren&#x27;t impaired. Regardless of what you suspect they may or may not have eaten. If they are impaired, the field tests will show and you can arrest them.<p>I see no point in making this easier for law enforcement. I don&#x27;t think we need more specific laws, that just opens up new questions and loopholes.