Department of Health and Human Services

Suspicious Substance Response Guidelines

Attachment A

Some characteristics of suspicious packages and letters include the following:

• Excessive postage
• Handwritten or poorly typed addresses
• Incorrect titles
• Title, but no name
• Misspellings of common words
• Oily stains, discolorations or odor
• No return address
• Excessive weight
• Lopsided or uneven envelope
• Protruding wires or aluminum foil
• Excessive security material such as masking tape, string, etc.
• Visual distractions
• Ticking sound
• Marked with restrictive endorsements, such as "Personal" or "Confidential"
• Shows a city or state in the postmark that does not match the return address.

Back to Protocol Guide