Detect Law(Player's Handbook v.3.5, p. 219)
Level: Cleric 1, Adept 1, Ebonmar Infiltrator 1, Divine Bard 1, Wu Jen 1, Death Master 1, Savant 1 (Divine), Urban Ranger 1, Urban Adept 1,
Components: V, S, DF,
Casting Time: 1 standard action
Range: 60 ft.
Area: Cone-shaped emanation
Duration: Concentration, up to 10 min./ level (D)
Saving Throw: None
Spell Resistance: No
This spell functions like detect evil, except that it detects the auras of lawful creatures, clerics of lawful deities, lawful spells, and lawful magic items, and you are vulnerable to an overwhelming lawful aura if you are chaotic.