Liability is for both.....
1) Whether driver have valid Driving Licence of same category .? If yes NO Problem.
2) If driver is drunken owner can't be hold the responsibility for the act of others.
3) If not wearing the seat belt or any other misconduct of the driver ,owner do not have the act of liability for his staff. The responsibility is on Moral basis, to face the situations of others misconduct.
4) As owner has to act because the vehicle is his property and which can be ceased or toed to the custody of law enforcement authority.
5) This all depends on the gravity / intensity of the offense to act accordingly.
6) Simple e.g. If a central government's vehicle is a offender we can't take responsible to President of that country, as he is the sole authority of all the property of central government . It is a person responsibility who is on the wheels....!!!.
Simply the driver is the first accuse , then the owner because he is indirectly involved in this act. But the major loss is of the owner because the vehicle in the scene is his/ hers property ,and not the person on wheels . Punishment by act is to the driver and the indirect major loss is to the owner if the vehicle goes into custody.....!!!
Moral of the story : Act as a responsible citizen either a driver or a owner...!!!. what role he or she plays....!!! more