There is a Legacy version
here.
Ring of Truth
Spell 3Uncommon Concentrate Detection Manipulate Mental Source Player Core pg. 354 2.0Traditions divine,
occultCast 10 minutes
Range 30 feet;
Area 20-foot burst
Defense Will;
Duration 10 minutes
You designate an area in which lies are revealed. Creatures in the area also take a –2 status penalty to
Deception checks. Each time a creature in the area speaks a true statement, the soft ring of a bell sounds in the area. Creatures are aware of the magic; therefore, they can avoid answering questions to which they would normally respond with a lie, or they can be evasive as long as they remain within the boundaries of the truth. If a creature is in the area when the spell is cast or later enters the area, that creature attempts a Will save. It uses the results of this initial save if it leaves and reenters the area.
Critical Success The target is so convincing that the bell rings even if they lie.
Success If the target lies and succeeds at their Deception check against all targets, the bell still rings.
Failure The bell accurately sees through their deception and will never ring if they lie.