A strong Annex A evidence pack separates design evidence from operating evidence. Design evidence shows that the control is defined: policy, procedure, standard, architecture, contract clause, role description, or configuration baseline. Operating evidence shows that the control actually ran during the review period.
The evidence pack should be easy to sample. For access control, that may mean access rules, joiner-mover-leaver tickets, privileged access approvals, and periodic access reviews. For incident-related controls, it may mean event handling records, evidence preservation procedures, lessons learned, and corrective actions. For technological controls, it may mean configuration exports, monitoring alerts, vulnerability records, backup results, or audit-test safeguards.