Abstract
Keywords: tire, printing, slid, glide, rolling.
The physical proofs that are the most used and analyzed in the case of car accidents are the prints left by the tires on the traffic lane or in its neighborhood. Considering the way they are obtained there are two trace groups: friction traces; traces made by printing. The tires must be examined to look for producing causes. This article shows every tire’s feature (glide friction traces, slid friction traces, rolling trace) and if they were produced after or before the impact.