Secured by Design (SBD) is the official police security initiative that works to improve the security of buildings and their immediate surroundings to provide safe places to live, work, shop and visit.Browse our range of Secured by Design products... Add to basket Defender Signal Blocker – Faraday Pouch – 2 Pack£6.95 Add to basket Defender Signal Blocker Mini – Faraday Pouch – 2 Pack£5.95 Add to basket Defender Car Number Plate Fixing Kit£2.50 Add to basket Card Defender Vault – RFID Blocking Card Holder£12.95 Add to basket Card Defender Diamond – RFID Blocking Credit Card – 2 Pack£4.95 Add to basket Card Defender – RFID Blocking Card Sleeves – 6 Pack£4.95