What is the process called that law enforcement uses with a special light and goggles to find bodily fluids?

Question

I've seen the gadget used on several police shows, (CSI, Monk, etc.) and I am looking for what the process or equipment is called.

Answer 1

When scientists use black (UV) light to irradiate substances, it has been found that some body fluids tend to emit light of a lower energy in response. See http://www.freepatentsonline.com/5770147.html

Answer 2

just search on google like cop stuff and what not but there usally like really strong black lights