In this instance, the term suspicious packages is being used as a general term to cover a number of articles that could pose a potential threat, to include letters, packages or parcels, and unattended luggage or backpacks. Potential threats include, but are not limited to, IEDs [improvised explosive device] that take any form and can be any size, biological hazards such as anthrax, chemical hazards, and radiological hazards.
It is possible to come in contact with a suspicious package at home, in your workplace, or in public. You should always exercise caution if a package seems suspicious; report it immediately, and be prepared to act in a manner that enhances your safety as well as others. Above all, if you perceive a threat, call 9-1-1 from a land line.