Detect Charm

This spell functions like detect magic, but in only detects charm, compulsions(like command), and possession effects. You immediately detect the strength and location of each such area on all creatures in the area. You don’t know what it is. In addition to noticing the targets of these effects, you can recognize when creatures in the area are using these effects on others by attempting a insight check as standard action (DC=1d20+casterlvl). If you succeed, you can attempt an arcane check to identify what magic it is using.

Duration: Concentration, up to 1 minute/level