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DIGITAL EVIDENCE
Dr. Rajesh G. Patil
Associate Professor
Dr P.D College of Law
Amravati
Introduction
• The nature of cyber crime is complex
• A computer could be referred to as a victim of
crime or weapon of the offence
• It begins with the unauthorized access of the
computer
• This access could be physical or virtual
• The weapons of the crimes are sophisticated
technological tools
Introduction
• As every criminal leaves behind evidence at the
scene of the crime a cyber criminal does the same
• The only requirement is ways and means to collect
and interpret the digital evidence
• Here comes the need of computer forensics
• Computer forensics is the branch of digital forensics
pertaining to evidence found in computers etc..
Collection of Digital Evidence
• There are two levels at which the evidence of Internet
usage exists
1. Individual Level…on
-the individuals own computer
-website accessed by individual using his computer
2. ISP Level
-on the servers of individual ISP
Collecting Evidence@ individual Level
Collecting data at ISP Level
Forensic Techniques
Admissibility of electronic records
• Electronic evidence nowadays has become important
evidence in cyber and other crimes
• It may take form of cctv camera footage, computer records,
whatspp and face-book messages, emails records, etc
• The collection and preservation of digital evidence is a
technical concept and needs experts as seen
• However its admissibility and proof before the courts
requires legal framework and
Indian Evidence Act (an overview)
• Indian evidence act provides the mode and manner in which
evidence is to be given before the court..
• It provides a mechanism as to giving evidence by prescribing that
1. Only facts in issue and relevant facts can be proved(3-55)
2. These facts can be proved only in prescribed modes(56-100)
3. The rules as to burden of proof(101-117)
4. The rules as to competency of witness( 118-134)
5. The principles as to examination of witness(135-165)
We follow such a model of Law of evidence where we cannot go
beyond what is stated in the above rules
Indian Evidence Act and Digital Evidence
• With the advent of IT Act 2000 certain amendments
were made to Indian Evidence Act
• In order to check admissibility and proof of digital
records one needs to revisit the entire mechanism
• All the norms as discussed earlier has to keep in
mind while proving a electronic record
Definition of term evidence(s/3)
• The very first significant change which is made by IT act
2000 is the change in the definition of Evidence
• The original definition contained only oral and
documentary as evidence
• But now the term electronic record has been added to
the definition
• So now electronic records stands as evidence as a mode
of proof for facts in Issue and relevant facts
Definition of term evidence(s/3)
Changes in the chapter of Relevancy of
Facts
• The evidence can be given only of facts in issue and relevant
facts
• The emergence of electronic evidence has not affected this
part at all
• The facts in issue and relevant facts which could already be
proved by oral and documentary evidence can now be
proved by electronic evidence
• But some changes have been made to the chapter which has
only relevance to e records
Admission can be in form of Electronic Record
When oral admission as to content of
Electronic Record relevant
Statements under special circumstances
Statements under special circumstances
Expert opinion as to Electronic evidence
Opinion as to digital signature
Modes of Proof
1. The Electronic record has become a new modes of
proof
2. The amended Evidence Act provides in which form
electronic record is admissible
3. AND how electronic record is to be proved and also
provides cerain presumptions as to electronic records
4. The major change has occurred in this part of the Act
Provisions dealing with proof of electronic
records
1. Section 59 says all facts except the content of the document
or electronic records can be proved by oral evidence
2. Section 65A and 65B provides for admissibility and proof
of electronic records
3. Section 67A provides for proof of digital signature
4. Section 73 states proof as to verification of digital signature
5. Section 81A, 85A ,85B,85C,88A,90A provides for the
presumptions of certain electronic records
Admissibility and proof of electronic records
Admissibility and proof of electronic records
Admissibility and proof of electronic records
Proof of digital signature
Proof as to verification of digital signature
Presumption as to electronic record five
years old
Presumption as gazettes in electronic form
Electronic records and other chapters of
Evidence Act
• There are no changes in the chapter of burden of proof and
the original rules of the Act apply per se to electronic
evidence
• There has been no change in the chapter of competency of
witness except adding of the word electronic evidence to
certain provisions
• The rules as to examination of witness remains unchanged
and the witness called for proving electronic evidence has to
examined alike (the word electronic record is added )
Conclusion
• The electronic evidence is the new species of the evidence
that has been added to Evidence Act with the advent of IT Act
2000
• In the developing cyber age there is more likelihood that in
the coming years this evidence would be the only mode of
proving facts
• The procedure for proving electronic evidence in law
evidence is very stringent and overrides the other provisions
of the Act
•THANK YOU

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Digital evidence

  • 1. DIGITAL EVIDENCE Dr. Rajesh G. Patil Associate Professor Dr P.D College of Law Amravati
  • 2. Introduction • The nature of cyber crime is complex • A computer could be referred to as a victim of crime or weapon of the offence • It begins with the unauthorized access of the computer • This access could be physical or virtual • The weapons of the crimes are sophisticated technological tools
  • 3. Introduction • As every criminal leaves behind evidence at the scene of the crime a cyber criminal does the same • The only requirement is ways and means to collect and interpret the digital evidence • Here comes the need of computer forensics • Computer forensics is the branch of digital forensics pertaining to evidence found in computers etc..
  • 4. Collection of Digital Evidence • There are two levels at which the evidence of Internet usage exists 1. Individual Level…on -the individuals own computer -website accessed by individual using his computer 2. ISP Level -on the servers of individual ISP
  • 6. Collecting data at ISP Level
  • 8. Admissibility of electronic records • Electronic evidence nowadays has become important evidence in cyber and other crimes • It may take form of cctv camera footage, computer records, whatspp and face-book messages, emails records, etc • The collection and preservation of digital evidence is a technical concept and needs experts as seen • However its admissibility and proof before the courts requires legal framework and
  • 9. Indian Evidence Act (an overview) • Indian evidence act provides the mode and manner in which evidence is to be given before the court.. • It provides a mechanism as to giving evidence by prescribing that 1. Only facts in issue and relevant facts can be proved(3-55) 2. These facts can be proved only in prescribed modes(56-100) 3. The rules as to burden of proof(101-117) 4. The rules as to competency of witness( 118-134) 5. The principles as to examination of witness(135-165) We follow such a model of Law of evidence where we cannot go beyond what is stated in the above rules
  • 10. Indian Evidence Act and Digital Evidence • With the advent of IT Act 2000 certain amendments were made to Indian Evidence Act • In order to check admissibility and proof of digital records one needs to revisit the entire mechanism • All the norms as discussed earlier has to keep in mind while proving a electronic record
  • 11. Definition of term evidence(s/3) • The very first significant change which is made by IT act 2000 is the change in the definition of Evidence • The original definition contained only oral and documentary as evidence • But now the term electronic record has been added to the definition • So now electronic records stands as evidence as a mode of proof for facts in Issue and relevant facts
  • 12. Definition of term evidence(s/3)
  • 13. Changes in the chapter of Relevancy of Facts • The evidence can be given only of facts in issue and relevant facts • The emergence of electronic evidence has not affected this part at all • The facts in issue and relevant facts which could already be proved by oral and documentary evidence can now be proved by electronic evidence • But some changes have been made to the chapter which has only relevance to e records
  • 14. Admission can be in form of Electronic Record
  • 15. When oral admission as to content of Electronic Record relevant
  • 16. Statements under special circumstances
  • 17. Statements under special circumstances
  • 18. Expert opinion as to Electronic evidence
  • 19. Opinion as to digital signature
  • 20. Modes of Proof 1. The Electronic record has become a new modes of proof 2. The amended Evidence Act provides in which form electronic record is admissible 3. AND how electronic record is to be proved and also provides cerain presumptions as to electronic records 4. The major change has occurred in this part of the Act
  • 21. Provisions dealing with proof of electronic records 1. Section 59 says all facts except the content of the document or electronic records can be proved by oral evidence 2. Section 65A and 65B provides for admissibility and proof of electronic records 3. Section 67A provides for proof of digital signature 4. Section 73 states proof as to verification of digital signature 5. Section 81A, 85A ,85B,85C,88A,90A provides for the presumptions of certain electronic records
  • 22. Admissibility and proof of electronic records
  • 23. Admissibility and proof of electronic records
  • 24. Admissibility and proof of electronic records
  • 25. Proof of digital signature
  • 26. Proof as to verification of digital signature
  • 27. Presumption as to electronic record five years old
  • 28. Presumption as gazettes in electronic form
  • 29. Electronic records and other chapters of Evidence Act • There are no changes in the chapter of burden of proof and the original rules of the Act apply per se to electronic evidence • There has been no change in the chapter of competency of witness except adding of the word electronic evidence to certain provisions • The rules as to examination of witness remains unchanged and the witness called for proving electronic evidence has to examined alike (the word electronic record is added )
  • 30. Conclusion • The electronic evidence is the new species of the evidence that has been added to Evidence Act with the advent of IT Act 2000 • In the developing cyber age there is more likelihood that in the coming years this evidence would be the only mode of proving facts • The procedure for proving electronic evidence in law evidence is very stringent and overrides the other provisions of the Act