Not a lawfag, but I am guessing that it means the three have ten days to come up with what evidence can be used in court--here, as always, we run into the problem of what is 'classified,' and what is not. Since discovery is where both sides can see what is on the table, so to speak, for the case--so defense and prosecution can be prepared for court--the only real plan I can think of is how to deal with classification issues.