Even though some documented information was reviewed during Stage 1, ISO/IEC 17021-1:2015 (Clause
9.3.1.2.2) and ISO 19011:2018 (Clause 6.5.2) recommend that auditors should not entirely skip the review of documented information during the Stage 2 audit.
The Stage 2 audit is intended to evaluate the implementation and effectiveness of the management system, and this includes ensuring that documented information is not only available but also maintained, communicated, and used properly in operations.
Skipping this step may lead to overlooking changes made after Stage 1 or gaps not previously identified.
Reference:
ISO/IEC 17021-1:2015, Clause 9.3.1.2.2
ISO 19011:2018, Clause 6.5.2 - Conducting Document Review
PECB ISO/IEC 42001 Lead Auditor Study Guide - Stage 2 Audit Activities