I learned about this in 7th grade in nineteen ninety eight when the Mitochondria threw mankind off hеll in a cell, and plummeted sixteen feet through an announcer's table.
It should be considered no different than scanning for errant microbes/viruses/changlings. Not to mention, there should already be a detectable difference in phase variance by merely being a body in another point in spacetime (updated info not reaching all known outposts/ships notwithstanding).
Or a cow.