Which of the following elements in the pre-agreed format for marking evidence refers to the sequence number for parts of the same exhibit?

The element referred to as the sequence number for parts of the same exhibit is indeed the Exhibit Sequence Number. This component is crucial in maintaining a clear and organized tracking system for evidence. Each part of an exhibit can be subdivided into multiple pieces or components, and assigning a sequence number allows investigators to identify each individual part while still connecting it back to the main exhibit designation. This clarity is essential in forensic investigations, where the integrity and provenance of evidence must be meticulously tracked and documented.

In contrast, Exhibit Designation typically refers to the overall label assigned to an exhibit that identifies it within a case, while the Case Number is a unique identifier for the entire case and is not specific to any individual piece of evidence. The Document Number may be used for paperwork associated with the exhibit, but it does not pertain specifically to the sequence of parts within the exhibit itself. Therefore, Exhibit Sequence Number is the correct term that captures this aspect of evidence management.