Warning: This is 3.0 Edition material. It is possible that there is more recent 3.5 Edition version.
Inaccurate?

I Smell Your Fear

(Ghostwalk)

Divination
Level: Ranger 4,
Components:
Duration: 1 hour/level

As locate creature, except as noted above and below.
Material Component: A sample of the target's flesh, blood, hair, ectoplasm, or some other physical part.