Sold Secure is dedicated to reducing the risk of crime by the assessment of security products. Established in 1992 by Northumbria and Essex Police with the help and backing of the Home Office. Sold Secure is now owned and administered by the Master Locksmiths Association and works from purpose-built laboratories in Rugby, Warwickshire. Sold Secure Approval is classified into 3 main categories; Bronze, Silver & Gold (with an additional Diamond level for certain Caravan, Tracker & Cylinder Lock security products). The categories reflect the amount of time per test and the tools that are used and themselves vary depending on what test specification is being used. The higher the grading (Bronze is the lowest) the higher the security provided by the product.