Sideline interference
 

NFHS. B17 intercepts a pass at their own 10 and runs it back 90 yards into the end zone. At A's 30 the sideline judge runs into an assistant coach who was on the field. Their shoulders collided but the official was still able to run down the field.

What is the call? I wasn't there and didn't see the result in the video, but the newspaper wrote:

"Wright was picked off on the next play by Fabian Few at the 10 and the Bulldog senior return it 90 yards untouched for what looked like a game-breaking score with 0:04 left in the half.

The Thomson bench, however, was flagged for sideline interference when the side judge, trailing 15 yards behind the play, ran into the shoulder of a celebrating Bulldog assistant and nullified the touchdown with a flag."

According to the box score, the touchdown was indeed nullified.

The call was sideline interference, 9-4-8

Sounds as if it was enforced incorrectly. Its a succeeding spot foul.

If that's what happened, the officials screwed up: the basic spot for any non-player foul is the succeeding spot. 10-4-5c

There's lots of worse ways for a crew to learn that lesson, but it should be a pretty fundamental call from a rules perspective. It's an effective learning tool to see your mistakes written about in the newspaper, let alone permanently engraved on the internet.

It didn't affect the outcome of the game. If the assistant coach had been where he was supposed to have been, it wouldn't have happened.

I wouldn't have known it was an incorrect enforcement. Thanks for the education.

Was there maybe another penalty on the play?

Correct call, incorrect enforcement.

I myself "bumped" into 3 coaches this year, 2 of them were on TD's.