18 Questions
Why is it important to document every movement of digital evidence in the chain of custody process?
To prove that the evidence has not been altered and to show that no external evidence has been planted.
What is the purpose of the Seizure phase in digital forensics investigations?
To safely seize and transfer the physical evidence (digital device) to the forensic lab.
Why is it necessary to have permission from the proper authority to seize a suspect's digital device?
To ensure the seizure is legally authorized and to avoid evidence being deemed inadmissible in court.
What should be done if the suspect's computer is still running during the seizure phase?
Consider acquiring its volatile memory (RAM) if possible.
What are the four main phases of digital forensics investigations?
Seizure, Acquisition, Analysis, Reporting.
Why is it important for a well-trained technician to examine the suspect's digital device during the Seizure phase?
To ensure the digital evidence is acquired and preserved in a forensically sound manner.
Why is it crucial to maintain a correct chain of custody for digital evidence in an investigation?
To ensure the evidence is admissible in court and to track movements and possessors of the evidence.
What information does a chain of custody audit log track for digital evidence?
Movements and possessors of digital evidence at all times.
In a court of law, what questions can investigators answer with a correct chain of custody?
Investigators can answer questions about what the digital evidence is, where it was found, how it was acquired, transported, handled, examined, accessed, and used during the investigation.
What role does the chain of custody play in describing the acquired digital evidence in court?
It helps in accurately describing the acquired digital evidence.
How does the chain of custody help establish the state of a computing device upon acquiring digital evidence?
It includes information about the state of the computing device upon acquiring the digital evidence, whether it was ON or OFF.
Why is it important to document the tools and techniques used to examine digital evidence?
Documenting the tools and techniques used ensures transparency and reproducibility of the examination process.
What is the purpose of chain of custody in digital forensic investigations?
To ensure the integrity of digital evidence.
Why is it important to declare the chain of custody clearly?
To track how digital evidence was discovered, acquired, transported, investigated, preserved, and handled.
What does the chain of custody document between different parties involved in an investigation?
How digital evidence was handled.
Why is it crucial to know all persons who were in contact with digital evidence?
To maintain the integrity of the evidence.
How does chain of custody contribute to the presentation of digital evidence in court?
By ensuring that the evidence is admissible and reliable.
What is the ultimate goal of maintaining chain of custody in digital forensic investigations?
To ensure the integrity of digital evidence.
Study Notes
Importance of Chain of Custody
- Failing to track evidence handling during investigation jeopardizes the chain of custody, making evidence inadmissible in court
- Maintaining a correct chain of custody ensures digital evidence is acceptable in court
Chain of Custody Questions
- What is the digital evidence and where was it found?
- How was the digital evidence acquired and transported?
- How was the digital evidence examined and handled?
- When was the digital evidence accessed, by whom, and for what reason?
- How was the digital evidence used during the investigation?
Chain of Custody Process
- Documentation is key to proving digital evidence has not been altered or tampered with
- Every movement of digital evidence must be documented to maintain a correct chain of custody
Digital Forensics Examination Process
- The process involves four main phases: seizure, acquisition, analysis, and reporting
- Different approaches exist, but all divide the work into these four phases
Seizure Phase
- Physical evidence (digital device) is seized and transferred safely to the forensic lab
- Requires permission from the proper authority (e.g., court warrant)
- Suspect digital devices are examined by a well-trained technician to ensure forensically sound acquisition and preservation
Digital Evidence
- Any kind of file or data/metadata in digital format (binary format) that can be used during a trial
- Can be found on various devices, including hard drives, laptops, tablets, smartphones, IoT devices, and more
Locations of Electronic Evidence
- Digital evidence can be found on various devices, including:
- Desktops, laptops, tablets, servers, and RAIDs
- Network devices, IoT devices, DVRs, and surveillance systems
- GPS devices, smartphones, PDA, game stations, digital cameras, and more
Test your knowledge on maintaining a correct chain of custody for digital evidence, ensuring its admissibility in court. Learn about the importance of an audit log in tracking movements and possessors of evidence throughout investigation phases.
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