One of the primary mistakes that businesses make with security system installation is to attempt to purchase the equipment without first creating a plan of what they will need. You'll need to understand your security vulnerabilities and the key access points.
Follow Surveillance Laws
Always begin by learning about the surveillance laws in your state. For example, in some states, you are not allowed to set up dummy cameras because those who are in trouble might stand by your surveillance camera with the hope that footage will then exist to be used in court.