Confidential informants are a bit different, here.

One is a low level perp you let slide because they nark on bigger fish, the other is just a random person who may have information that’s sensitive, not necessarily themselves criminal.

Either way, though, that probably goes to entrapment. And if OP’s not a LEO, and still trying to get some one jammed up, there’s probably a slew of charges there- especially if the motive is leverage.