Help on T situation

[BlueDevilRef]

Originally Posted by BillyMac

My question. Is this penalized if the player with the illegal number has already played, and the illegal number is "discovered" while the "player" is on the bench (no longer in the game), i.e., must the player with the illegal number be "in the game" at the time of "discovery" to penalize?

This was my exact situation. #8 was in game but when I figured it out, he was on the bench. To me, that was the time of discovery and it should have been a direct T.

I realize we screwed up by missing it in the beginning. Can we please focus on penalty admin and my original issue of exactly what "when it occurs" vs "when discovered" and how those affect these types of T's