Suspicious Packages or Envelopes (continued)

How to Subscribe
MLS & MLT Comprehensive CE Package
Includes 153 CE courses, most popular
$95Add to cart
Pick Your Courses
Up to 8 CE hours
$50Add to cart
Phlebotomy CE Package$55Add to cart
Individual course$20Add to cart
Need multiple seats for your university or lab? Get a quote
The page below is a sample from the LabCE course Bioterrorism: The Laboratory's Role and Response. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

Learn more about Bioterrorism: The Laboratory's Role and Response (online CE course)
Suspicious Packages or Envelopes (continued)


  • Powdery substance felt through or appearing on the package.
  • Oily stains, discolorations or odor.
  • Lopsided or uneven envelope.
  • Excessive packaging material such as masking tape, string, etc.
Other Suspicious Signs
  • Excessive weight.
  • Ticking sound.
  • Protruding wires or aluminum foil.