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http://www.bbc.co.uk/news/technology-28523738
"The City of London police has started placing banner advertisements on websites believed to be offering pirated content illegally.
The messages, which will appear instead of paid-for ads, will ask users to close their web browsers.
The move comes as part of a continuing effort to stop piracy sites from earning money through advertising.
Police said the ads would make it harder for piracy site owners to make their pages look authentic.
"When adverts from well known brands appear on illegal websites, they lend them a look of legitimacy and inadvertently fool consumers into thinking the site is authentic," said Detective Chief Inspector Andy Fyfe from the City of London Police Intellectual Property Crime Unit (Pipcu).
"This new initiative is another step forward for the unit in tackling IP crime and disrupting criminal profits.
"Copyright infringing websites are making huge sums of money though advert placement, therefore disrupting advertising on these sites is crucial and this is why it is an integral part of Operation Creative."
Sunblock
The initiative will make use of technology provided by Project Sunblock - a firm used by major brands to stop adverts appearing alongside questionable content such as pirated material or pornography."
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http://www.bbc.co.uk/news/technology-28523738