This report analyzes the expenditure cycle of Adam & Co and identifies the internal control weaknesses in each of the three expenditure systems and the risk associated with those weaknesses. The report starts with a review of the literature stating the important internal control techniques and benefits of conducting audits. The report also includes system flowcharts of purchases, cash disbursement, and payroll systems. The internal control weaknesses in each system are discussed in detail. The subject is HA2042 and the document type is a case study.