Enact a new rule, “Locations”:-

Each Detective has a Location, which may be any of the Possibilities of the Murder’s Location, or the Morgue, or the Archives, or Roaming. A Detective’s Location is tracked in the GNDT, with Roaming optionally being trackable as “-”, and it defaults to Roaming.

A Detective may change their own Location at any time.

Replace “When a Detective finds a Clue, the Chief selects a Possibility at random and privately informs that Detective of that Possibility: if the Possibility is a Quality of the Murder it is described to the Detective as “Proof”, otherwise it is described as “Disproof”.” with:-

A Detective’s Location determines the Scope of Clues they might find:

* If the Detective’s Location is any of the Possibilities of the Murder’s Location, their Scope is that Possibility alone.
* If the Detective is at the Morgue, their Scope is all Possibilities of the Method
* If the Detective is at the Archives, their Scope is all Possibilities of the Motive
* If the Detective is Roaming, their Scope is all Possibilities

When a Detective finds a Clue, the Chief selects a Possibility at random from those in the Scope of that Detective, and privately informs that Detective of that Possibility: if the Possibility is a Quality of the Murder it is described to the Detective as “Proof”, otherwise it is described as “Disproof”.