When an incident has been closed, you can download a report. Click on "Show closed incidents".
In the list of the closed incidents, you can click on "Download report". This will generate a report from the incident that you can download and use for documentation or evaluation.
It is also possible to get reports from incidents by using the more advanced report module. The report module lets get reports from incidents by using different filters. For example incidents of a specific type within a date period. And also separate incidents that are a part of exercises and so on.