Secured By Design Secured by Design is the UK Police flagship initiative supporting the principles of "designing out crime" by use of effective crime prevention and security standards for a range of applications. It is intended to achieve a better quality of life by addressing crime prevention at the earliest opportunity in the design, layout and construction of homes and commercial premises. Secured by Design is supported and managed by the Association of Chief Police Officers (ACPO) and has the backing of the Home Office. It has been drawn up in consultation with the Department of the Environment, Transport and the Regions as well as trade, industry and standards bodies. Products which have been manufactured and tested to the ‘police preferred specification’ are awarded with the Secure by Design accredited and may be marketed with the Secure by Design logo. Safes and strongrooms are classified according to their resistance to determined attempts to gain unauthorised access to the contents.