Final answer:
A DUI conviction can occur with a BAC less than 0.08 if there is other evidence of impairment, such as poor coordination or judgment; additionally, drug influence can lead to DUI charges regardless of BAC level.
Step-by-step explanation:
You can be convicted of Driver Under the Influence (DUI) with a BAC less than 0.08 by providing other evidence of impairment. Although a BAC of 0.08% is commonly accepted as the legal limit in many US states, impairment can occur at lower levels depending on individual factors such as age, sex, and pre-existing health conditions. Therefore, even with a lower BAC, if the driver exhibits lack of coordination, blurred vision, difficulty with judgment, or other signs of impairment, they may still face DUI charges. Moreover, if a driver is under the influence of drugs, which can't be measured by BAC, evidence such as field sobriety tests, drug tests, and witness testimonies may lead to a DUI conviction.