What should be checked in a suspicious package besides the return address?

When evaluating a suspicious package, checking its markings is critical because these can provide immediate clues about the package's origin, content, and intended recipient. Markings may include labels such as "Fragile," "Perishable," or "Hazardous Materials," which can indicate whether the package poses a risk. Additionally, any unusual markings or lack thereof, such as missing postage, poorly affixed labels, or unfamiliar symbols, can signal that the package is indeed suspicious or unsafe.

While other factors like weight, delivery time, or shape can provide useful information, markings offer essential context about safety, compliance with regulations, and the package's handling instructions. Identifying unusual markings can prompt further investigation and appropriate action, ensuring safety and security. Therefore, focusing on markings is a vital step in the assessment of any suspicious package.