Honestly struggling to add context to your post here!
Offside is always, ultimately, the referees decision. The AR signals when a player may be penalised for offside, the referee makes the final judgement whether the player is penalised.
I was replying to the fact that when
@OldNavyRef says
I believe he was referring to judging the players position as opposed to what an offside offence is, so P.I.G. is not really helpful, because P.I.G. only matters once you know the player who Ps, Is, Or Gs is offside in the first place.
like I say CARs giving offside was alien to me, but it seems that most areas have CARs do them and actually, areas such as the north west are the outliers in that respect.
it works well because the only info you need off the CAR is PIOP and who... But with the training and a good brief a lot, at least here in Cornwall, do a good job.