A system for tagging, organizing and tracking evidence during the course of an investigation has one or more mobile communication devices that collect physical, photographic and interpretive evidence, such as materials from a crime scene, interviews with witnesses and an establishing shot of the crime scene or other areas or persons of interest for surveillance operations. The mobile devices can be in two-way communication with a central server computer which is in communication with other mobile devices. The mobile device users can enter descriptive information about the evidence into the mobile devices while other information pertaining to the evidence may be obtained from other sources and automatically provided to the users for their review and possible incorporation into the record. Each mobile device can store information in memory and communicate the information to the central server computer where it may then be made available to groups of mobile device users.