The Tennessee CJA 28D — Investigative Services Summary Budget Worksheet is a document used by criminal justice professionals to estimate the costs associated with an investigation. This worksheet includes multiple sections for entering costs of services, such as witness fees, travel expenses, and expert fees. It also includes sections for entering estimated costs of equipment, such as audio/video equipment and computers. This worksheet is used to calculate the total cost of an investigation and can be used for budgeting purposes. There are two types of Tennessee CJA 28D — Investigative Services Summary Budget Worksheets: the basic version and the advanced version. The basic version is designed for smaller investigations and does not include all the categories for cost entry; while the advanced version is designed for larger investigations and contains all the categories for cost entry.