World-leading secure document and next-generation identity event SDW 2016 has sold out all stands in the additional exhibition hall space that was opened up to meet exceptional demand.The additional space was opened last December after unprecedented demand saw the original exhibition sell out some six months before the event's 10th annual edition, which will be held on 10-12 May in the QEII Centre, Westminster, London.There will now be a total of 130 identity and secure document companies and organisations represented at the event. Organisers, Science Media Partners, have confirmed that this year has seen the event's fastest-ever sales, underlining the rising interest worldwide in document security and identity trends.Mark Lockie, SDW 2016 Event Director, and Managing Director of Science Media Partners, commented: "Security issues related to government document and identity programmes are increasingly in the global spotlight. We are proud to be hosting such an exciting showcase of the latest identity technology in the SDW 2016 exhibition, and will also be offering an insight-packed conference programme that really gets to the heart of the issues facing the industry."The expanded exhibition space will host a seminar area, where visitors will be able to attend a variety of free sessions highlighting developments and innovations in the sector.The SDW exhibition is free to attend – simply register online here. There is also the chance to become a Visitor Plus+ and receive a £5.00 catering voucher to use at the show, if you sign up before 1 April.Feedback from last year's event was overwhelmingly positive, with 93% of event participants surveyed rating SDW 2015 as either Good or Excellent.Last year also saw 8% growth in attendees, with more than 1,700 industry and government specialists from 70+ nations using the SDW 2015 platform to network, seek out solutions, and to understand the latest technology and business trends in this fast-moving sector.Science Media Partners is a British publishing and events company based in Pangbourne, Berkshire. As well as the SDW Conference and Exhibition, SMP also owns the connect:ID event in Washington, DC, which it runs in association with the International Biometrics + Identity Association (IBIA).