Related Clues:

• Vestiges
• Evidence
• Becomes aware of
• Slight amounts
• Notices
• Negligible amounts
• Tracks down
• Copies, in a way
• Emulates Holmes
• Picks up, as a scent
• Very small quantities
• What a good criminal avoids leaving
• Small quantities
• Minute amounts
• 1969 hit song by the Classics IV