Which of the following is crucial when installing a burglar alarm system?

The importance of secure installation to avoid tampering cannot be overstated when it comes to burglar alarm systems. A system that is easily accessible or improperly installed can be disabling or easily bypassed by an intruder. Proper installation involves ensuring that all components are mounted securely, with tamper-resistant features in place, such as tamper switches on the devices themselves. This prevents an individual from disabling the alarm by simply accessing its components. Furthermore, a well-secured system enhances overall effectiveness, as it ensures that alarms will function correctly and that the system remains intact during an attempted breach, thus providing a reliable layer of protection for the property.

While factors such as color-coded wiring, use of motion detectors, and connection to local law enforcement are important for functionality and efficiency, they are secondary to the fundamental requirement that the system be secure against tampering in order to be effective in a real-world situation.