GPS tracking, NFC tagging, and QR code scanning are all combined in contemporary police systems. For easy monitoring, guards use smartphone apps to digitally validate checkpoints. Instant notifications are sent to supervisors for irregular or missed patrols. Traditional patrols become proactive, data-driven security management thanks to smart features. https://guardworkforce.com.sg/products/gps-nfc-qr-guard-tour-patrol-system/