Smuggling is the illegal transportation of objects, substances, information or people, such as out of a house or buildings, into a prison, or across an international border, in violation of applicable laws or other regulations. More broadly, social scientists define smuggling as the purposeful movement across a border in contravention to the relevant legal frameworks.

There are various motivations to smuggle. These include the participation in illegal trade, such as in the drug trade, illegal weapons trade, prostitution, human trafficking, kidnapping, heists, chop shops, illegal immigration or illegal emigration, tax evasion, import restrictions, export restrictions, providing contraband to prison inmates, or the theft of the items being smuggled.

Smuggling is a common theme in literature, from Bizet’s opera Carmen to the James Bond spy books (and later films) Diamonds Are Forever and Goldfinger.

History
Smuggling has a long and controversial history, probably dating back to the first time at which duties were imposed in any form, or any attempt was made to prohibit a form of traffic. Smuggling is often associated with efforts by authorities to prevent the importation of certain contraband items or non-taxed goods; however, there has also been smuggling based on illegally exporting goods. In England smuggling first became a recognised problem in the 13th century, following the creation of a national customs collection system by Edward I in 1275. Medieval smuggling tended to focus on the export of highly taxed export goods — notably wool and hides. Merchants also, however, sometimes smuggled other goods to circumvent prohibitions or embargoes on particular trades. Grain, for instance, was usually prohibited from export, unless prices were low, because of fears that grain exports would raise the price of food in England and thus cause food shortages and civil unrest. Following the loss of Gascony to the French in 1453, imports of wine were also sometimes embargoed during wars to try to deprive the French of the revenues that could be earned from their main export.

Most studies of historical smuggling have been based on official sources — such as court records, or the letters of Revenue Officers. A senior academic of the University of Bristol states that they only detail the activities of those dumb enough to get caught. This has led him and others, such as Prof. H. V. Bowen of the University of Swansea to use commercial records to reconstruct smuggling businesses. Jones’ study focuses on smuggling in Bristol in the mid-16th century, arguing that the illicit export of goods like grain and leather represented a significant part of the city’s business, with many members of the civic elite engaging in it, whether by disguised/hidden transport or mis-description of goods. Grain smuggling by members of the civic elite, often working closely with corrupt customs officers, has also been shown to have been prevalent in East Anglia during the later 16th century.

In England wool was smuggled to the continent in the 17th century, under the pressure of high excise taxes. In 1724 Daniel Defoe wrote of Lymington, Hampshire, on the south coast of England.

・ I do not find they have any foreign commerce, except it be what we call smuggling and roguing; which I may say, is the reigning commerce of all this part of the English coast, from the mouth of the Thames to the Land’s End in Cornwall.

The high rates of duty levied on tea and also wine and spirits, and other luxury goods coming in from mainland Europe at this time made the clandestine import of such goods and the evasion of the duty a highly profitable venture for impoverished fishermen and seafarers. In certain parts of the country such as the Romney Marsh, East Kent, Cornwall and East Cleveland, the smuggling industry was for many communities more economically significant than legal activities such as farming and fishing. The principal reason for the high duty was the need for the government to finance a number of extremely expensive wars with France and the United States.