An internal auditor is asked to review a recently completed renovation to a retail outlet.

A physical inspection of the retail outlet would provide the most reliable evidence that the completed renovation work conformed to the plan. This method allows the auditor to directly observe the completed work and compare it with the original plans and specifications, ensuring that the renovation meets the required standards and expectations.

IIA Standards: 2310 - Identifying Information

IIA Practice Guide: Auditing Capital Projects and Construction