Can you be arrested for DUI if you were not in the car but you were operating the car from your home, lawyers now wonder?
That may be the latest attorney issue after this new California law which approves testing regulations and safety standards for the driverless cars on California's public roads.
The new California law was pushed through by Google. American manufacturers are already looking at designs, at Ford and Cadillac.
The new California law requires backup safety systems in case the self-driving software or hardware fails.
Such California cars must have the ability to come to a stop if the human driver cannot take over during an emergency, and it must record at least half a minute of sensor data at any given time in case of accidents or collisions on the road.
California's law requires DMV to adopt new regulations for licensing, bonding, testing and operating autonomous vehicles by Jan. 1, 2015.
The new California law authorizes the DMV to impose added requirements on autonomous vehicles that don't have a human in the driver's seat.
A number of California vehicles already have self-parking systems or anti-collision detection technology similar to what self-driving cars might feature.
A European test of a "road train" of cars that follow a single lead truck also hints at the future when many autonomous cars may also "talk" wirelessly with one another to ensure road safety and smooth driving.