Can the internal audit be performed by Internal QA Auditor without the need of a technical person for a process/activity audit?
You can certainly have an internal auditor auditing a process without need of technical support, BUT in some cases your auditors may need support of technical experts. See ISO 19011:2002 Guidelines for Quality Management System auditing 3.10 Definition of Technical Expert: person who provides specific knowledge or expertise to the audit team. We often see auditors supported by technical experts in case of very specific processes.
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