Divination
Level: Cleric 4, Despot 3, Drow 4, Enforcer 3, Inquisition 4, Mind 4, Nobility 4, Paladin 3, Tyranny 3, Witch 4
Components: V, S, DF
Casting Time: 1 standard action
Range: Close (25 ft. + 5 ft./2 levels)
Target: One creature/level, no two of which can be more than 30 ft. apart
Duration: Concentration, up to 1 round/level
Saving Throw: Will negates
Spell Resistance: No
Each round, you concentrate on one subject, who must be within range. You know if the subject deliberately and knowingly speaks a lie by discerning disturbances in its aura caused by lying. The spell does not reveal the truth, uncover unintentional inaccuracies or necessarily reveal evasions. Each round, you may concentrate on a different subject.
Source: Player’s Handbook (Page 221)