Smuggling, also known as trafficking, is the clandestine transportation of goods or persons past a point where prohibited, such as out of a building, into a prison, or across an international border, in violation of the law or other rules.
There are various motivations to smuggle, most but not all of which are financial. These include the participation in illegal trade, such as drugs, illegal immigration or emigration, tax evasion, providing contraband to a prison inmate, or the theft of the items being smuggled. Examples of non-financial motivations include bringing banned items past a security checkpoint (such as airline security) or the removal of classified documents from a government or corporate office.