Many of us are familiar with the concept of infrared technology in high-security systems. In movies, robbers often hang from ceilings or perform acrobatic moves to dodge invisible infrared beams that crisscross floors or doorways, without setting off sophisticated alarms. Whilst this is largely a figment of the directors’ imaginations, the use of infrared to warn of potential security threats is nothing new. Today, advanced LiDAR (Light Detection and Ranging) technology is central to securing buildings, perimeter fences and tunnels because it is accurate, precise, and creates real-time detection alerts.