What must be included in the log for all III records requested?

The requirement to include the requestor's name in the log for all Interstate Identification Index (III) records requested is critical for several reasons. First, documenting the name of the individual making the request fosters accountability and transparency in the data access process. This is essential for tracking and managing access to sensitive information, ensuring that only authorized personnel can retrieve such records.

Additionally, having the requestor's name aids in maintaining an audit trail, which is crucial for compliance with various legal and regulatory standards that govern the use and dissemination of criminal history information. This log can serve as an important reference point during audits or investigations concerning data access and usage, helping to uphold the integrity of the information management system.

In the context of the other options, while the agency's phone number, the date of the request, and the location of the records may also be important for different record-keeping purposes, they are not as directly tied to the accountability and verification of who is accessing the records, which underscores why the requestor's name is the essential element to include in the log.