I have updated the Clue track to make it shorter.

The Clue track goes from 0 to +6, and now reads:

The Clue track starts at 0. When the colony finds an important clue, establish your current theory and roll 1d6 +Clue track.
On a 7+, the clue allows you to deduce who the culprit is.
On a 4-6, describe how the new clue supports your theory, and where it leads you.
On a 3-, describe how the new clue contradicts your theory, but provides you with a new lead.
Afterwards, the clue track advances by 1.

If your RPG session is coming to an end, I would recommend cheating on the Clue track and say you roll a 7+.