Why did you hit someone with a car? Never pay for medical expenses first.

First of all, from the legal point of view, it is not stipulated that the perpetrator has the obligation to pay in advance, and the traffic police only have the power to judge the responsibility of the accident. The traffic police have no say on the issue of compensation, and they can only organize mediation between the two parties. If the mediation fails, it can only be decided by the court, so any payment before the judgment is voluntary by the perpetrator.