Which documents would include the make, model, and serial number of an external hard disk drive during an investigation?

The Chain of Custody is crucial during an investigation, as it provides a detailed record of the evidence collected, including who handled the evidence, when it was obtained, and how it has been stored or transferred. This document typically includes specific details about the evidence itself, such as the make, model, and serial number of items like an external hard disk drive. This information is vital for maintaining the integrity of the evidence and ensuring that it can be reliably traced throughout the investigation and any potential legal proceedings.

In contrast, while the other options may contain useful information related to the overall investigation, they are not specifically focused on the detailed specifications of evidence items. The Case Timeline generally outlines key events and milestones in the investigation rather than specifics about individual pieces of evidence. General Case Documentation can include a variety of records and notes but does not emphasize the granular details of evidence characteristics the way Chain of Custody does. Process Documentation typically describes the methodologies and procedures followed during the investigation without detailing individual items of evidence. Thus, the Chain of Custody is the most appropriate document for capturing the specific details of an external hard disk drive in an investigative context.