I feel like this is a situation where the issues are both technical and political. If the system were technically designed correctly, they would need to put dow

I feel like this is a situation where the issues are both technical and political. If the system were technically designed correctly, they would need to put down verifiable details for who the other driver who allegedly drove the truck. This would be easily detectable, as a driver can't be in two places at once etc. The other solution as one of the other commenters mentioned is essentially a physical tamper evident key that gets inserted into the recorder. Without a second key, there would be no way to operate the truck. The other issue here is that it seems that the truck companies are given too much latitude to run their own monitoring systems. The monitoring should be done by/through an entity that is incentivised to detect violations rather than cover them up.