Ask if they have any felonies or are allowed to own a firearm. If they say yes, you're good to go. If they seem sketchy, walk away.
Seller's rules so you are perfectly within your rights to see whatever you want to see. There's no legal requirement that anyone buying a gun have an LTCH.This is why I'd prefer to see an Indiana Driver's License and LTCH for the sale.
For my own peace of mind, I like to see a valid IN ID and prefer an LTCH for handguns. But that is just me, I would be more at ease.
Seller's rules so you are perfectly within your rights to see whatever you want to see. There's no legal requirement that anyone buying a gun have an LTCH.
... The chapter also does not apply to, "Indiana residents licensed to carry handguns." ...
True, indeed. Yet, the code cited specifically exempts LTCH holders - therefore it could be a defense. There is a reason for it.
In case you missed it:
That's IC 35-47-2.5-1 Sec. 1 a (3). Not a lawyer, so I reserve the right to be completely wrong!