I think these skills are already being used by psychics who locate missing people. But as we know psychics aren't 100% right and most people don't believe in them anyway.
I discussed finding missing people with Joe McMoneagle after he gave a lecture when I was at Monroe. He is a famous remote viewer. He said remote viewers do it all the time. I'm not sure they are using the actualized past history data stream to do it. I think they are more using their consciousness in the present time data stream to see where the person/body is in present time.
They could use the actualized past history database one delta-t before the present to get the information. It would look like the present but it might not be.