Security systems design is a very important sub-system of any modern construction of any building (private or public).  Designing needs choice of proper equipment of the latest technologies for full security control and inspection from local or remote points. Systems are designed as fully-fault-safe for 24h operation.  Either CCTV is chosen or Alarm system or Barriers or Access control, reliable and trusty systems would provide fault tolerant operation and ease of use. Engineering specs can be provides to speculators or owners for further equipment search to achieve cost effective results.