What would you do?

[referee99]

Originally Posted by oldschool

Just coming to end of 3rd Quarter A1 goes up for shot. Partner has jumpball as whistle blows so does horn ending quarter. Whistle did come first but just barely. Do you use alternate possession or not? Thanks for your input.

What if instead of held ball, you had a foul?
Would you ignore as well?

I actually got educated on this over the weekend. If the official knows that the event (held ball, or foul as I suggested) occurred prior to the end of the period (the sound of the horn) then the result of the play or any violations incurred should stand -- as they occurred before the quarter ended.

If the officials do not have knowledge of remaining time, then by rule they are not allowed to put time back on the clock.

So, in the OP, we have a held ball occurring as the period ends. We cannot take action on this event at this time, as the quarter is now over. Done. We haven't ignored the event, we have recognized it occurring.

The A/P arrow remains unchanged, as we have not had an A/P throw-in. We will have an A/P throw-in to start the next quarter.