"Hmmm, that's reasonable, but how do we do this? We can't go on and say to their face that we suspect them. If we do so, it will be one hell of a disaster," Sirius asked. Scratching his chin, he tried to think of a plan while he waited for Ray's mother to answer.
"Bingo!" Ray's mother replied as she pulled out a holographic tablet from her spatial storage and spoke, "Well, Ray planned it beforehand. He has installed full-body scanners to scan a person's vitals, and more but more importantly, they can even scan a person's race. This way, at least we can lure out the doppelgängers who have blended in as humans but aren't," as she said this, she glanced at Ray's team and observed everyone in a quick glance.