California law recognizes complicity or being an accomplice to a crime as having encouraged or aided in the commission of a misdemeanor or a felony. This is the case under federal law as well. Accomplice liability means that an accomplice could face the same penalties if convicted as the person who actually committed the crime.
A research team from the University of Southern California and England's Oxford University has concluded that ride sharing services like those offered by Uber and Lyft do not have any significant impact on drunk driving fatalities. The researchers came to their conclusions after studying drunk driving fatality rates in 100 densely populated urban areas both before and after ride sharing services were introduced. The research was published on July 22 in the American Journal of Epidemiology.