ABSTRACT
This project work identifies the challenges facing the Nigerian Police Force that seek to implement a Data warehouse for crime tracking and investigation support. The project highlights the importance of the application, the security department identifying crime records and then designing a new system that accomplishes the task specific to the need of the enduser. Police officers can therefore, Make decisions on crime rates through the pattern recognition method from the data warehouse, They can as well track crime before it happens, by using the result gathered from criminal data mining to predict where the next crime will occur. This project is implemented as an online application (client-server) that can be accessed by officers. The project was carried out using system development implemented with PHP and HTML as the front-end and My SQL server as the back-end. The Data warehouse would help keep achieved integrated criminal data, suspect cases, record of cases and information. It will improve the performance of the police officers in handling cases, provide timely, accurate and efficient information about cases, suspect, history and help in good reports and decisions.