Q said sealed inditements. Criminals don't usually act alone. Guess each could be 3-5 people each, but may be 10 or more. Say 7 on average…
So that's about 400,000 to half a million.
Now think about how long due process would take. Half the current regular prison population would need to be released for space, and the hardcore evil ones sent to Gitmo would still number in the thousands.