The police could give you a DUI based on the way you were driving alone. Yet more typically, they back themselves up with a breath or blood test for alcohol.
While there are ways to challenge test results, empirical evidence is typically quite convincing.
If you like a drink from time to time, there may be occasions when you are unsure if you’re safe to drive. Hence you might try to calculate whether you would pass a police test or not.
It’s not a good idea
If you’re ever in doubt, you should always err on the side of caution. It’s safer for you and everyone else out there. Being below the limit doesn’t mean you’re safe to drive, as any quantity of alcohol will impair your driving ability. The safest option is always not to drive if you drink.
There is no hard and fast rule about how quickly your body will process alcohol.
Research suggests your blood alcohol content (BAC) will drop by about 0.015 per hour. So it can process roughly one standard drink per hour. Be careful, though, as that is an average figure for an average male on an average day. Also, remember many drinks stray from being standard.
So many factors can affect how long it takes to clear alcohol from your body that it’s just not safe to try calculating. Getting it wrong could cost you your license and your liberty.
If you tried and got it wrong, there may still be a chance to beat your DUI charge. Seek legal assistance to find out how different defenses may apply to your situation.