A number of notable controversies and concerns associated with the 2012 Summer Olympics in London, UK emerged which were the subject of public debate and media commentary.
Protection of the Olympic brand has been the subject of some criticism. The Olympic rings themselves are protected in the United Kingdom under the Olympic Symbol etc. (Protection) Act 1995, and under provisions set out by the London Olympic Games and Paralympic Games Act 2006, the London Organising Committee of the Olympic Games and Paralympic Games (LOCOG) are empowered to prevent the misuse of Olympic branding leading up to the 2012 Games. The acts aim to prevent unauthorised commercial association with the games by traders (such as using the Olympic rings in a shop window) and to prevent attempts at ambush marketing at games events, but the constraints detailed in the guidelines issued by LOCOG have been criticised by some commentators as a form of censorship.
The guidelines specify a range of trademarked logos and designs as well as certain "Listed Expressions" and protected words that advertisers may not use, which include the words "London" and "2012". Even if an advertiser does not mention the Olympics or use any of the listed words, any visual or audio representation of London and sports may be considered by a court to be an infringement of LOCOG's rights and subject to a fine of £20,000 or possible imprisonment. A number of individuals and businesses have fallen foul of the restrictions including a lingerie shop in Leicester, a grandmother knitting for charity and a Plymouth café selling Olympic torch baguettes. An exception to these rules was successfully negotiated by the restaurant chain Little Chef, who have been permitted by LOCOG to continue to sell their fried "Olympic Breakfast" because the item has carried that name on their menu since 1994.
In an interview with BBC journalist Evan Davis, Lord Coe emphasised the need to protect the rights of official sponsors such as BMW and Adidas who had contributed large sums of money to the Games. His suggestion that visitors to the London games would not be admitted if they were wearing a Pepsi-branded T-shirt was later retracted by LOCOG, who stated that such rules would apply only to large groups of spectators wearing "visibly branded" clothing.