California observes something known as the rule of comparative negligence. Comparative negligence means that even if you are partially responsible for an accident, you may still be able to collect a portion of the damages to which you would have been entitled had you been completely without fault.
As an example, suppose that you sued a drunk driver and the jury determined you were entitled to $100,000 in damages. If the jury felt you were 30 percent responsible for the crash, you would then receive $70,000 instead of $100,000. Your monetary award would be reduced by the amount of fault you had in the accident.