DEFRs and DESs are properly briefed by the relevant authority before they act, within confidentiality limits (need to know). A formal briefing explains the incident and what the team will and will not encounter, and reminds the team not to tamper with or spoil evidence; it is thorough enough that everyone can perform their role and all relevant evidence is obtained.
This control maps to 1 controls across 1 other frameworks. If you already hold one of them, the evidence you collected for it is the starting point here rather than new work.
Every mapping shown was judged rather than inferred from wording similarity, and the ones that failed review are published too. See the coverage reports and what was rejected.
The graph holds this control, the 1 it maps to, and the evidence behind each claim, over MCP and REST.