Singapore is leveraging biometric AI to tackle a growing occupational hazard: extreme heat. The Home Team Science and Technology Agency (HTX) is currently trialing a predictive system that monitors the gait and heart rates of police officers to preempt heat illness before it escalates into a medical emergency.
Since October 2025, more than 150 police officers have been equipped with wearables that track walking patterns and cardiovascular data. The system feeds this information into an algorithm designed to detect subtle changes in gait—often a precursor to heat exhaustion—which are then flagged on a dashboard for medical personnel. This shift toward proactive monitoring aims to prevent severe outcomes such as exertional heat stroke, which can lead to organ damage, seizures, or collapse.
The operational goal is a rapid transition from detection to intervention. When the system flags an officer as at risk, medics can implement immediate countermeasures, including prescribed rest or ice baths. To supplement the real-time tracking, HTX has also introduced the xHEAT app, which allows personnel to assess their individual risk levels before beginning a task.
This initiative reflects a broader strategic pivot within HTX. Formed in December 2019 as a statutory board under the Ministry of Home Affairs, the agency functions as a “force multiplier” for the Home Team—which includes the Singapore Police Force and the Singapore Civil Defence Force. By integrating AI into workforce management, the agency is moving beyond traditional surveillance and forensics into the realm of human factors and simulation.
The agency’s technical ambitions extend beyond personnel health. In January 2026, HTX launched CBRNE@Changi, a specialized laboratory at the Changi Airfreight Centre. The facility is designed to enhance border security and pandemic preparedness, utilizing digital registration systems to double testing capacity and reduce processing times from six hours to four.
While no officer has been flagged as at risk during the current gait-tracking trials, the development comes at a critical time for labor safety. With dry weather patterns and the anticipated arrival of El Nino in the second half of 2026, the commercial and operational cost of heat-related workforce attrition is becoming a primary concern for the state’s security infrastructure.
How does the gait-tracking tool identify heat illness?
The tool uses wearables to monitor heart rate and walking patterns. An algorithm analyzes this data to identify early physiological signs of heat stress—specifically changes in how a person walks—and alerts medics via a dashboard before the officer exhibits traditional symptoms like fainting.

What is the broader strategic goal of HTX’s “AI first” mandate?
The mandate, supported by a SGD 400 million budget, aims to integrate artificial intelligence across all agency operations. This includes developing capabilities in robotics, unmanned systems, and predictive health tools to increase the efficiency and safety of Home Team operations.
What are the immediate consequences for an officer flagged by the system?
Once flagged as at-risk on the medical dashboard, the officer is closely monitored and provided with early interventions, such as mandated rest or ice baths, to prevent the onset of severe heat stroke.
How does this technology impact workforce readiness?
By shifting from reactive treatment to predictive prevention, the system may reduce the number of medical casualties during high-heat operations, thereby maintaining higher levels of operational readiness for the Singapore Police Force and other Home Team departments.
As climate volatility increases, will biometric surveillance become a standard requirement for all high-stress occupational roles in the public sector?





