There are many cases in which the both parties involved in a car accident are both partly responsible. An inflictor if injury can also be a victim, and vice versa. Determining who is at fault is not always a cut and dry. For example, if you receive injuries from a negligent driver while you were going over the speed limit, a case could be made that you are in part responsible for the accident.
However, being partially responsible does not disqualify you from compensation eligibility. You still have a right to pursue some compensation for your pain and suffering. In these cases, a jury will decide how much you deserve according to your level of responsibly. The less at fault for the accident you are, the more compensation you are likely to receive. This ensures that you can regain at least some of what your owed, if not more.