they may have it confiscated by security when they board at the transit port, as they will be exceeding the current limit on liquids in hand baggage. This does not apply to passengers transferring within the EU and Singapore on the same day, as long as the liquid item is sealed in a plastic security bag with the receipt showing in the bag. Arrivals duty-free shops are now becoming more common. Most of South and Central America, and the Caribbean have such shops, as does South East Asia and Oceania. Switzerland and Canada are looking to introduce them in 2010. This method of retail removes any security problems with the transit of liquids, as they are not carried on aircraft. Several airlines do not allow sales of certain sharp objects in-flight due to security risk. Other objects that have sharp parts, such as model airplanes, may be bought in-flight but received at the passengers' home address for the same reason. Boarding Pass / Passports Proof of travel may be requested at the checkout point to prevent airport employees from making personal purchases. Inbound duty-free Some countries or districts, including Argentina, Australia, Brazil, Chile, China, Colombia, Iceland, Italy, Iran, India, Jamaica, Kenya, Lebanon, Malaysia, New Zealand, Norway, Panama, Philippines, Sri Lanka, Switzerland, Taiwan, Turkey, United Arab Emirates and Uzbekistan have inwards duty-free facilities, where arriving passengers can purchase duty-free items immediately before going through customs. This not only saves the inconvenience of having to carry these items around the world but also solves the security problem mentioned above. Other countries such as Canada and Sweden have been considering duty-free on arrival. The European Union does not permit arrivals duty-free stores; some EU airports sell goods on arrival in the baggage claim area described as "Tax-Free", but these goods are all tax-paid sales, the local sales tax is discounted. Normally, discounted liquors or tobacco products cannot be bought when arriving into an EU Member State as there is often a high local Excise Duty on these goods as well as the local sales tax (VAT/IVA/TVA) which is included in the price. In some EU Territories the tax on tobaccos and liquors is lower than in other EU countries, which is why the prices still seem competitive and look like duty-free prices. A good example is the difference in tobacco prices between the UK and Ireland, compared to Spain or Portugal. Legal basis