Surveillance systems are an integral part of any serious security system. It is a means by which you can monitor machinery, employees, visitors, and uninvited people. It is a great way of cataloguing any security situation so that it can be used in any legal action in a later period. This makes it a great thing for any retail business, but it is by no means only good for such a business. If maintaining the security of your personnel, of your R&D facility, or of privileged information in a Law or Doctor’s office is a concern, then a CCTV camera system is a great way of monitoring any security situation. It won’t always be enough to secure your premises and property, but it is a great place to start. Coupled with a key card, or pin code entry system can help to protect you from a wide range of potential problems which can arise.