I&#x27;m bothered by the &quot;no matter whose data it was&quot;, especially for multi-car crashes and for crashes without other parties being hurt.<p>In a multi-car crash, I&#x27;d like to see this: all data is available for defense in court. For offense, you get your own data and you also get the common subset of data from every car. If somebody&#x27;s car provides nothing, then nobody&#x27;s data can be used for offense.<p>Example why: Suppose your car records that you are going 20% too fast. The other person was going 150% too fast, but his car didn&#x27;t record anything. It&#x27;s not fair that he can use your evidence to prove that you are at fault. His failure to provide evidence lets him get away with much worse.