Our civilisation is capable of creating any life form we're finding on alien planets. We "sample" several subjects by abducting them and we study them. But for some advanced species, for example - humans - it's not enough. Humans are an interesting example of "social-featuring" species. As such, we can only understand them when the subjects live in their society.
For that matter, we can create new specimen and then release them into societies of their domestic planet so then we can observe those. Question is - how many can we release into their society before their governments will notice?
What we can/cannot do:
- We can create a specimen of any age
- We can not "copy" memories from another specimen (unfortunately, it turns out that memories are on a quantum level and.. well, no-cloning theorem prohibits such cloning)
- In particular, we struggle with memory manipulation in general, because - eventual consistency. If we "change memory" for someone, at some point it will inevitably contradict with their other memories derived from other events leading to the risk of mental deterioration. We want to avoid this.
- EDIT (thanks to @Alexander): if the memories do not cause eventual inconsistency - we can implant those. For example, their name, a language or a profession.
- We can create as many of them as we want
As such, our new specimen will not have any memories and obviously, will not have any of those weird things they call "documents". We want to have as many of our created specimen at the same time as possible as it speeds up the research and, you know, the research budget isn't a thing that comes easily.
We already consulted with our colleagues on a similar problem here but we're facing a problem from the opposite side.