Police departments around the world face N number of problems or pressures on their resources. Researchers from the University of Surrey and Georgia Institute of Technology in the US have developed a software that can immediately predict where illegal activities are likely to occur, helping police departments to fight against crime. This is similar to that used in weather forecasting and the Apollo space missions, which supplements an Epidemic Type Aftershock Sequence (ETAS). This is a kind of grid map-based approach.
The Ensemble Poisson Kalman Filter (EnPKF) a novel algorithm was developed by the researchers to use this approach. This also has a possibility to indicate how often a crime could repeat in a particular area. It provides real-time updates on the crime reports.