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The chain of custody documentation provides information regarding the collection, transportation, storage, and general handling of the electronic evidence. A typical chain of custody document may include: Date and time of collection. Location of collection.

The chain of custody is the most critical process of evidence documentation. It is a must to assure the court of law that the evidence is authentic, i.e., it is the same evidence seized at the crime scene. It was, at all times, in the custody of a person designated to handle it and for which it was never unaccounted.

Using technology and investigative techniques, computer forensics helps identify, collect, and store evidence from an electronic device. Computer forensics can be used by law enforcement agencies in a court of law or by businesses and individuals to recover lost or damaged data.

Documentation is a continuous process throughout the investigation process. It is important to precisely record location and status of computers, storage media, other electronic devices, and traditional evidence, although there are overlaps and similarities in the digital and physical forensic investigation.

Definition(s): A process that tracks the movement of evidence through its collection, safeguarding, and analysis lifecycle by documenting each person who handled the evidence, the date/time it was collected or transferred, and the purpose for the transfer.

Cyber security helps to prevent cybercrimes from happening, while computer forensics helps recover data when an attack does occur and also helps identify the culprit behind the crime. It helps to think of cyber security professionals as a security company, and to think of computer forensics experts as investigators.

ASTM D4840-99(2018)e1: Standard Guide For Sample Chain-Of-Custody Procedures defines sample chain-of-custody as: “a process whereby a sample is maintained under physical possession or control during its entire life cycle, that is, from collection to disposal.”

What is the chain of custody in computer forensics? The chain of custody in digital forensics can also be referred to as the forensic link, the paper trail, or the chronological documentation of electronic evidence. It indicates the collection, sequence of control, transfer, and analysis.