He primary purpose of a certificate of confidentiality is to:

Certificates of confidentiality protect sensitive info provided by research subjects from civil, criminal or administrative subpoena. The primary purpose of a certificate of confidentiality is to: protect identifiable research info from compelled disclosure.

The primary purpose of a certificate of confidentiality is to provide a required disclosure to the researched or any sensitive information belonged to the organization. This information can belong any part or wing of the company like civil, criminal or any kind of administration.

So you know what happened and so it doesn’t repeat it’s self