Final answer:
In Georgia, a person who is 21 years old can be arrested if their breath analysis shows a blood alcohol concentration (BAC) above the legal limit.
Step-by-step explanation:
In Georgia and many U.S. states, including Georgia, a person aged 21 or older can face arrest if their breath analysis registers a blood alcohol concentration (BAC) above the legal limit of 0.08%. The Breathalyzer, a commonly used device, measures the ethanol concentration in a person's breath, providing an indirect but proportional estimate of their BAC. The legal limit serves as a threshold for determining impairment while operating a vehicle.
If the breath analysis indicates a BAC exceeding 0.08%, law enforcement authorities can take action, including arresting the individual for driving under the influence (DUI) or driving while intoxicated (DWI). These measures aim to enhance road safety by discouraging impaired driving and holding individuals accountable for violating established legal limits to promote responsible and safe driving practices.