A United Arab Emirates judge on Monday rejected the extradition to Denmark of Briton Sanjay Shah, the main suspect in a Danish dividend tax fraud case, a lawyer representing Shah said. Danish authorities had requested the extradition of Shah, who was arrested in Dubai in June, for prosecution over his alleged involvement in a sham trading scheme to make double tax reclaims – known as “cum-ex” trading. He is suspected of running a scheme that involved submitting applications to the Danish Treasury on behalf of investors and companies from around the world for dividend tax refunds worth more tha…