One of the world's largest art fairs opens its doors this weekend in the Netherlands, with organisers saying they have thrown a ring of steel around it after a brazen heist last year. "We worked on what we should be doing for 2023", the TEFAF's Head of Fairs Will Korner confirms. "The most obvious thing is of course security gates, they're now at the entrance of the fair, and there are many other measures that I won't talk about for many obvious reasons," he adds. IMAGES AND SOUNDBITES