Judging a "judgement" call

[bob jenkins]

Originally Posted by Snaqwells

Just to clarify, are you expected to watch your area and your partners' areas to make sure they don't kick a rule?

Depends.

Suppose the ball is in your area and it's contested. Then, your partner blows the whistle and signals "illegal screen." You later find out he called it for "moving while setting a screen, even though there was no contact." You (likely) won't get in trouble for not helping out here.

But, in the OP, it's reasonable to have an opinion on the play, so it's reasonable to try to verify the call / rule.