DUI - DWI attorneys represent clients charged with driving under the influence (DUI) or driving while intoxicated (DWI). Other common phrases for these charges include: drunk driving, drinking and driving, and driving while impaired (due to alcohol, drugs, or other substances). A DWI - DUI lawyer can review the merits of the case including the arrest, citation, chemical test, alcohol blood test (ABT), breathalyzer results, trial, conviction, sentence, appeal, etc.