Everyday field work of a police officer requires the perception, filtering and understanding of large amounts of information in highly dynamic situations. This presents opportunities for ICT to alleviate strain on officers by providing adequate information provisioning. We evaluate the usage of a mobile location-based hotspot policing system, comprised of a smartphone, smartwatch and a web-application, during real field work with officers in high and low hotspot density locations. We use a repeated measures design to compare possible effects with our baseline measure, i.e. field work without using the system. Usability, task-load and situational awareness (SA), as well as possible mediators, are evaluated to gain insight into the differences between modes of transportation and the overall viability of the system itself. No significant difference was found between the two locations. Officers using the system scored high on usability measures and interview feedback was largely positive. Measures on SA remained stable throughout baseline and experimental shifts. Task-load was significantly higher with the use of the system. The contradiction in these findings can be explained by showing the differences in the nature of field work with and without the system.

The police organization is highly dependent on information. Frontline police officers are working on the streets and need the right information at the right time. Mobile technology can provide location-based information and could be of great assistance to them. We developed a mobile location-based real-time notification system and conducted an exploratory study in two real-life experiments. The system provides information on a point of interest (PoI) when frontline police officers are close to that PoI. Usability, recall of information, and situational awareness were measured to assess the impact of the system on police work. The results show that the system usability was adequate, recall of information varied between police officers working with the system and without, whereas little difference in situational awareness was found. Interviews suggest that awareness regarding PoI’s was increased and new behaviour was triggered by the system. Future research will evaluate further developments of the system and its impact on police work.