Outbrief
Assuming that they're pretty much standard across the FJ community: The crew, or formation, present themselves at the Auth's desk where they will, depending on their status, either self-authorise their flight, or be authorised by...the authorising officer. This following an interchange regarding route, sortie detail, update of late warnings/NOTAMs/weather en-route and for recovery/diversions, scrutiny of proposed route (to ensure JO Bloggs has all the relevant NOTAMS plotted, and that the planned route avoids them).
Crews not self-authorising should additionally be given specific instructions not to crash, thereby minimising the Auth's exposure to potential censure should the nastiness occur.
In other words, it's a final sanity check for both the crew(s) and the Authorising officer
Mister B