If you’re looking for a little guidance, try:
the white room
Since the crime rate of 2217 is so low, it is unlikely you’ll be put into holding with more than 5-6 others.
For effecient use of resources, we recommend Cleansing at least two subjects at a time..
last kill & testament
At the moment, we’re capping this room at 6 victims.
More can be added if requested, but for general comfort we recommend 6 or less.