In international law and maritime trade, goods are often categorized by how they aid a conflict:

: The most frequently seized items in U.S. federal prisons include cell phones (47.8%), drugs (34.7%), and weapons such as shanks ( U.S. Sentencing Commission ).

: The rules for seizing contraband were first standardized in the Paris Declaration of 1856 , which protected neutral ships from having their non-war-related cargo seized (Oxford Public International Law). If you'd like to explore this further, I can: Find current customs laws for a specific country.

: Goods that can be used for both peace and war, such as food , clothing , and fuel ( Scribd ). These are only seized if they are destined for an enemy's military forces rather than its civilians. 🏢 Contraband in High-Security Environments