Which of the following techniques would best detect on inventory fraud scheme?

Understanding Inventory Fraud Detection:

Inventory fraud typically involves overstatement or understatement of inventory, fictitious inventory transactions, or misappropriation of stock.

A key way to detect fraud is analyzing inventory adjustments (e.g., write-offs, missing stock, excess inventory) to identify unusual patterns or discrepancies.

Why Stratifying Inventory Adjustments by Warehouse is the Best Approach:

Identifies high-risk locations: Certain warehouses may show significantly higher inventory losses or adjustments, indicating possible fraud.

Detects manipulation: Fraudsters may manipulate inventory records to cover theft or misstatements.

Supports data-driven audit procedures: Stratification allows internal auditors to prioritize high-risk areas for deeper investigation.

Why Other Options Are Incorrect:

A. Analyze invoice payments just under individual authorization limits – Incorrect, as this technique detects fraudulent disbursements, not inventory fraud.

C. Analyze inventory invoice amounts and compare with approved contract amounts – Incorrect, as this method detects pricing or procurement fraud, not inventory manipulation.

D. Analyze differences discovered during duplicate payment testing – Incorrect, as this technique is used to detect billing fraud, not inventory fraud.

IIA’s Perspective on Fraud Detection and Internal Controls:

IIA Standard 2120 – Risk Management requires internal auditors to assess fraud risk, including inventory manipulation.

IIA GTAG (Global Technology Audit Guide) on Fraud Detection recommends data analytics for inventory monitoring.

COSO Internal Control Framework highlights inventory control as a key component of financial accuracy and fraud prevention.

IIA References:

IIA Standard 2120 – Risk Management & Fraud Detection

IIA GTAG – Data Analytics for Fraud Detection in Inventory

COSO Internal Control Framework – Inventory and Asset Management Controls

Thus, the correct and verified answer is B. Analyze stratification of inventory adjustments by warehouse location.