What does state law say?
Current state criminal statutes do not address social hosting. However, some communities may have local ordinances on social hosting that can include fines and other penalties.
Can the adult be sued?
The State of Delaware has not enacted a law regarding civil penalties for social hosting. In the absence of a statute, Delaware Courts have consistently held that a person injured by an intoxicated minor has no statutory or common law cause of action against the business or social hosts who provided alcohol to the minor.
Are there local laws that I should be aware of?
It is possible. Check with your local municipality since there are some communities that enact additional local ordinances which can include fines and other penalties.