The term “crime” has different classification in different parts of the world an act which is a crime in one state may not be the same in another state. Crime in any form affects each and every individual of the society. During the last quarter of the twentieth-century, advancement in computer science and information technology, species of crime like cybercrime is resulting as a new crime. We are in the digital world and the computer & internet have given us ascent to digital crime and other unlawful activities related to the internet and computer systems.The advent of information technology in the last decade in particular gives a new dimension to cyber criminality. A new type of computer-mediated misdeeds has led to extraordinary development. Crime shifted on Cyberspace has become a global phenomenon and a big challenge for law enforcement agencies.

“Cyber Crime” defined as any offences where computer network or electronic communications, including any communication device or the Internet or both or more of them are involved and “Cyber law” defined as the legal matters that are related to electronic devices or the cyberspace. It is a great tool to integrate the challenges imposed by perpetrators on the internet with implementation of laws enforce to the physical world. In new era of Internet and computer, cyber laws assume a very vital role. It is significant as it is worried to practically all parts of actions and recreations that occur either on computer or the cyber space.

Cyber forensics is the art and science of applying computer science to aid the legal process. With the rapid advance in technology it quickly became more than just an art though. It is more than the technological, systematic inspection of the computer system and its contents for evidence or supportive evidence of a civil wrong or a criminal act. Computer forensics requires specialized expertise and tools that goes above and beyond the normal data collection and preservation techniques available to end-users or system support personnel. Cyber forensic is primarily concerned with the systematic process of identification seizure, acquisition, authentication, analysis, documentation and preservation of digital evidence.