© Licensed to London News Pictures. 20/04/2019. London, UK. Thousands of revellers gather to smoke cannabis in London's Hyde Park without been detained as part of '4/20 Day', an unofficial International Weed Day, an event that takes place every year on 20 April. Attendees are calling on the Government to decriminalise Class B drug and raise awareness about the drug. Photo credit: Dinendra Haria/LNP
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