Psychometry is the ability to hold an object and know particular information about the item or the owner of the object. The basic belief is that the object holds some residual energy from the person who handled the object. Much like an article of clothing holds your sent.

Law enforcement has relied on persons who have this ability to help solve crimes where something was left behind but no physical evidence could be found from an object involved in a crime.

Biointroscopy is the ability to enter a location and know about the people and events that transpired at that location. Once again, the idea is that the person has the ability to sense the residual energy left behind from the persons who once occupied the area.