Lie Detector a Scientific Crime Game 1960 Lie Detector includes a small plastic non-electronic 'Lie Detector Machine', a plastic peg board for keeping score, and numerous 'Arrest', 'Summons', 'Secret Information', and 'Suspect' cards. 24 suspects, one of them has committed a crime. The players have a number of turns to find the guilty party by interrogating suspects with the Lie Detector machine. Play with 3-4 players is recommended Non-electronic game piece, for hours of play with no need for batteries. 8 and up