Truth Serium

A Caster can cast Truth Serium with the use of sodium pentothal. The Spell takes 5 minutes to cast and after that someone cast ask the creature 4 questions. 3 of the question would be truthful and another would be dishonest. After 3 minutes the creature that the spell was casted on passes out. 

if preformed without materials the creature must make a DC 13 charisma saving throw

 Sodium pentothal costs 100 gp to preform the spell once. You can also spend 5 hours in a forest to gather the components. The stash can produce Sodium Pentothal.

This spell is considered a charm.