In CT, teens were arrested for not stopping someone from driving who was allegedly drunk.
http://shine.yahoo.com/healthy-living/teens-charged-as-accomplices-for-letting-friend-drive-drunk-194849860.html
"Two 17-year-old boys arrested in Glastonbury, CT on Thursday are finding out the hard way that you can. They were charged with misdemeanors, as police say they knew their friend Jane Modlesky, also 17, was too drunk to drive when she got behind the wheel of an SUV in July before crashing into a tree and dying. "
"“They very well knew that she was intoxicated and should not have been driving,” Agent James Kennedy of the Glastonbury Police Department tells NBC Connecticut."
"In Washington in 2002, for example, a 29-year-old woman was charged with being an accomplice to drunken and reckless driving after she was accused of convincing someone to get behind the wheel; the subsequent accident killed six people, while she was the only survivor. She was later acquitted by the state Supreme Court. While that was a rare case, a more frequent situation is that of bartenders being held liable, under state "dram shop" laws, for continuing to serve drunk patrons who then get behind the wheel of a vehicle."