Accounting Records - with a properly maintained audit trail, it is possible to track transactions through the systems and to find where and when errors were made:
pre-numbered source documents
subsidiary ledgers
general ledger
files
Access Controls
Access to assets and information (accounting records) should be limited.
inventories and access to records such as the inventory subsidiary ledger should be restricted.
Independent Verification - physical procedures as well as record-keeping should be independently reviewed at various points in the system to check for accuracy and completeness:
G/Ledger dept. verifies: the total obligations recorded equal the total inventories received
shipping verifies the goods sent from the warehouse are correct in type and quantity
warehouse reconciles the stock release document (picking slip) and packing slip
general ledger reconciles journal vouchers from billing, inventory control, cash receipts, and accounts receivable