British Police officers stand on duty outside the Supreme Court in London on the final day of a four-day hearing to appeal against the High Court ruling that Article 50 can not be triggered without a Parliamentary vote. Photo Justin Tallis/AFP/Getty
Nuns speak to each other before Zubik v. Burwell, an appeal brought by Christian groups demanding full exemption from the requirement to provide insurance covering contraception under the Affordable Care Act, is heard by the U.S. Supreme Court in Washington
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Mayor of London, Boris Johnson competes in a tug of war during the launch of London Poppy Day on Tuesday in London, England
Cambodian protesters outside the appeals court in Phnom Penh, Cambodia. Protesters called on authorities to release human rights activists and garment workers arrested during a protest demanding increased wages
Russian feminist punk band Pussy Riot member Nadezhda Tolokonnikova attends a court session at the Zubova Polyana district court, 440km southeast from Moscow on Friday.