Related Clues:

• "CSI" sample
• Gene-splicing need
• Parent identifier
• Type of test on "CSI"
• "Who's your daddy?" test
• Type of fingerprint?
• Drop in a letter box
• Paternity-suit evidence
• Paternity test material
• Adonis ___
• Paternity proof, briefly
• Postal deliveries
• Subj. of modern mapping
• Letters and such
• Forensics focus