If you're convicted for some crime using, say, biometric and network data you can view the evidence and dispute it on several levels. If someone wanted to plant

If you're convicted for some crime using, say, biometric and network data you can view the evidence and dispute it on several levels. If someone wanted to plant fake data, it would require corruption along the whole chain of custody including many many people and several companies. But something like this could be created with three seconds in front of a terminal by a single individual. Here there's no evidence to dispute.