This map shows the major tobacco smuggling routes into Ireland and reveals that cigarettes made in Asia and Africa generally come into the country by sea.
However, from mainland Europe the illicit products mostly arrive here on planes and trucks.
It is a trade that costs Irish retailers €450m a year.
Ireland has one of the highest rates of illegal tobacco trade in Europe, and 25pc of cigarettes smoked here are not taxed, according to figures released by major tobacco manufacturing company JTI.
From the Baltic countries, Russia and Spain, illegal tobacco is arriving by plane.
It comes in cargo ships from the Suez Canal and the Canary Islands, while smugglers from mainland Europe favour the main motorways before travelling by ship to the UK and again by sea to Ireland.
Sources say a small number of Irish criminals have made millions of euro from the smuggling of illegal cigarettes into the country.
Source: Ken Foy, Irish Independent, 24/04/14