1. A mobile communication device for collecting and searching evidentiary materials from a crime scene during an investigation and managed by a central computer system, the evidentiary materials including physical evidence, photographic evidence, suspect evidence and interpretive evidence, comprising: a camera module, said camera module taking a set of physical evidence pictures and a set of suspect pictures; a plurality of input devices comprising a code scanner and an alphanumeric entry, said code scanner reading a plurality of machine readable media corresponding with the physical evidence and said alphanumeric entry receiving at least one of locations and descriptions of the physical evidence and at least one of names, addresses and vital statistics information for the suspect evidence; a computer processor operatively communicating with said camera module and said input devices, wherein a plurality of evidence entries are entered into said computer processor, said evidence entries comprising said set of physical evidence pictures received from said camera module, said set of suspect pictures received from said camera module, a plurality of physical evidence codes received from at least one of said camera module and said input device, and said locations, descriptions, names and said vital statistics information received from said input device; a memory in operative communication with said computer processor, wherein said evidence entries are stored in said memory with a first set of correlations between said physical evidence pictures, said descriptions and said physical evidence codes, a second set of correlations between said suspect pictures and said vital statistics information, a third set of correlations between said machine readable media and the physical evidence; a communications module in networked communication with the central computer system and in local communication with said computer processor, said communications module uploading said evidence entries and said sets of correlations from said memory to the central computer system; a display operatively communicating with said computer processor and producing a plurality of information screens, said information screens comprising a physical evidence screen and a suspects screen, wherein said physical evidence screen comprises a first picture field for displaying at least one of said physical evidence pictures and a plurality of physical evidence fields for displaying alphanumeric codes, locations, and descriptions from said evidence entries, wherein said suspects screen comprises a second picture field for displaying at least one of said suspect pictures and a plurality of suspect fields for displaying names, vital statistics and addresses from said evidence entries; and a handheld device sized to be held in one hand, said handheld device containing said camera module, said input device, said computer processor, said memory, said communications module and said display, wherein said alphanumeric entry comprises a search term for at least one of a physical evidence description, a suspect name and suspect vital statistics, said search term entered into a corresponding one of said physical evidence fields and said suspect fields, wherein said computer processor performs an internal search of said memory for said search term and obtains an internal search result, wherein said computer processor produces an external search request for said search term, wherein said communications module communicates said external search request to the central computer system and receives an external search result from the central computer system, and wherein said internal search result and said external search result for a plurality matches are displayed on said physical information screen within said handheld device.