Visitors to the London 2012 Olympic Games should leave behind counterfeit goods, illegal drugs, and other such prohibited stuff.
The UK Border Agency has asserted: Never bring in counterfeit goods, illegal drugs, offensive weapons, including knives, or indecent or obscene material.
It has added rules about what goods you can bring with you without paying duty or value added tax (VAT) are in place; and the restrictions apply even if you are a UK citizen returning from abroad.
Some items are also banned or restricted by law. If you are unsure of any item you are carrying, you must speak to a UK Border Agency officer.
It has also urged the visitors: `Never give false or misleading information, including false receipts or documents, to a UK Border Agency officer.
Fake UGG Boots, GHD hair straighteners, iPhones and iPads, designer clothes and Hello Kitty products are amongst the thousands of counterfeit items seized by the agency's officers in recent months.
Only recently, Grant Miller, from the UK Border Agency's Heathrow international trade division, said: 'Cheap counterfeits undercut honest traders and leave shoppers with goods that are at best inferior to genuine products and, at worst, harmful or unsafe.
'We are uncovering all sorts of fake goods, from beauty products to children's toys, and we're warning people to be particularly wary of buying cheap items online or from unofficial traders’.
Notable seizures made by the agency in the last year include: At Heathrow Airport: 1,100 seizures were made of items valued at around £10 million in the first 8 months of 2011-12 – the same number of seizures as in the whole of 2010-11. Many seizures were commercial quantities.
At Southampton: 45,000 pairs of UGG Boots were seized in container freight in August, the biggest such seizure in Europe.
At Coventry international postal hub: 13,000 items valued at approximately £14.5 million have been intercepted. The majority of these were items bought online and shipped to the UK from abroad.
At Stansted Airport: 15,000 items of counterfeit designer clothing were seized following a month-long operation in June 2011.
At Dover ferry port: a consignment of fake Disney, Hello Kitty, Thomas the Tank Engine and other toys worth around £50,000 was seized in October 2011.
At Manchester International Airport: GHD hair straighteners worth more than £310,000 were detained in November, leading to the arrest of 2 men by Greater Manchester Police. During the same month the agency intercepted more than £250,000 worth of fake cosmetics.