Final answer:
In New Jersey, individuals under 21 can be considered under the influence with a BAC above 0.01%. This is stricter than the standard 0.08% for those over 21, following federal mandates to discourage underage drinking.
Step-by-step explanation:
In New Jersey, if you are under the age of 21, you may be considered to be under the influence with a BAC (blood alcohol concentration) above 0.01%. This is because the National Minimum Drinking Age Act of 1984 requires states to enforce a minimum drinking age of 21, with various consequences for non-compliance such as reduced federal highway funds.
Risk factors for alcohol intoxication include environments where heavy drinking is normalized and individual impulsive behavior. The diagnosis of intoxication can be determined through blood or breath testing utilizing devices such as the Breathalyzer, which measures ethanol concentration reflecting the BAC. The legal limit for alcohol intoxication in most US states for drivers over 21 is 0.08%, but for those under 21 in New Jersey, any detectable BAC above 0.01% may be grounds for a DUI charge.