Out of body hallucinations

[Mageziya]

From the title I thought this would be like temporarily becoming a ghost, but this seems more interesting. I could see some sort of poison-bottle type chem used for kidnapping, but I'm trying to think of what advantage this would have over the other knock-out/paralyze chems the game has. The only thing I can think of is if you want someone to never be aware they were kidnapped, so you can then implant them with something like a microbomb or do other weird and diabolical surgery that the victim would ultimately never be aware of.

The big question with all of this though is how difficult this would be for the coders to make. It seems like a lot of work for a little reward.