South Carolina DUI Laws, Fines and Penalties
South Carolina DUI law section 56-5-2930 states that it is against the law for any person to drive a motor vehicle in the state of South Carolina while they are under the influence of alcohol or drugs with a blood alcohol concentration level of .08% or greater.
It is not necessary for a person who has been stopped on suspicion of driving under the influence to display the signs one would typically associate with someone who is under the influence. Just the fact that a chemical test shows a blood alcohol concentration level of .08% or greater will get you arrested for DUI in South Carolina.
It should also be noted that a person could still be arrested for driving under the influence in South Carolina even if their blood alcohol concentration level is below the legal limit of .08% just by displaying signs that are consistent with a person who is under the influence of alcohol or drugs.