Celenia D10 System CD10: Traits and Skills: Hound-nose

Your sense of smell is well developed and you can identify individuals on their body odor alone. Smells that are too weak to be perceived by others are no match for you and you can in most cases identify from where they originate. You aren't quite sensitive enough to smells that you can track someone's footsteps, but it's close. If someone has very recently passed the location, you could tell that they were recently there, albeit not follow their trail.