The principal way to detect omitted credits from books of account is through:

Detailed Explanation:

Rationale for Correct Answer: Trend analysis is one of the most effective ways to detect omitted credits. By analyzing patterns in revenue, expenses, or balances over time, discrepancies such as missing credits become apparent. Forensic examiners rely on comparative financial analysis to identify anomalies that suggest manipulation.

Analysis of Incorrect Options:

A. Forced Balance – Describes concealment, not detection.

C. Expense account – Accounts can be manipulated but are not detection methods.

D. None of all – Incorrect, since trend analysis is correct.

Key Concept: Analytical procedures (trend analysis) in fraud detection.