Errors and fraudulent transactions can be remarkably difficult to spot. In the Forensic Analytics manual, we provide a number of tools for teasing out these problem transactions from the masses of data in which they are normally hidden. Techniques covered include Benford's Law, outlier analysis, round numbers analysis, growth spurt analysis, policy threshold analysis, and time-series analysis. The manual also gives extensive coverage to the process of importing data into Excel, so that these analyses can be conducted.