The Digital Forensics is the various types of techniques used to inspect reserve and preserve the digital devices. The digital forensics is very necessary in searching the online crime and to find the detailed information of the crimes and criminals. Technically the digital forensics is divided in several branches like mobile device forensics, forensic data analysis, network forensics and computer forensics. There are many of the digital evidence in various forms like Compact Disk, Pen Drive, Floppy Drive, Tapes, any form of recorder and many more.
The Digital Forensics is needed by many departments like law enforcement officials, security agencies like NSA, FBI, CIA, Secret Service, military, insurance companies, etc. Here one can also recover the deleted of lost data wherever possible. The four major steps in the investigation are acquisition, preservation, analysis and presentation. Various countries have even passed different laws which can make investigation agencies to work smoothly. Find more information related to this in the attached file.