From publisher blurb:
In many investigative games, important clues are missed because of failed dice-rolls, resulting in play grinding to a halt. Using a “point spend” system, the GUMSHOE rules revolutionize investigative scenarios, by ensuring that players are never deprived of the clues they need to move the story forward.
The GUMSHOE System is player-facing, putting die rolling in the hands of the players whenever possible. It also contains full guidance on designing your own investigations.
this entry is to hold Items using the GUMSHOE system that are not written for a standalone RPG