What type of report documents and describes various expenses related to an investigation?

The type of report that documents and describes various expenses related to an investigation is an expenditure report. This report is specifically designed to track all financial outlays incurred during the investigation process, including costs for personnel, travel, materials, and other resources required to conduct thorough investigative work.

An expenditure report is essential in maintaining transparency and accountability, as it provides a clear breakdown of how funds are allocated throughout the investigation. This is particularly important for clients or employers who need to understand the financial aspects of an investigation, as well as for ensuring adherence to budgets and funding guidelines.

Other options do not serve the same purpose. For instance, an incident report primarily focuses on describing specific events or occurrences that are part of the investigation rather than detailing costs. An investigative report summarizes the findings and conclusions of the investigation but does not typically include detailed financial breakdowns. An evidence report is concerned with the chain of custody and detailing the evidence collected, not the expenses associated with the investigation. Therefore, the expenditure report is the best choice for documenting investigative expenses.