Equally not certain understood the proposition put forward.
But the AW is there purely to witness. The only circumstance where they would fire a shot I can come up with is if the candidate wounds an animal and then for some reason is incapable of delivering a follow-up.
No AW should be carrying a rifle whilst witnessing.
The matter of renumeration of AW's is left to individuals - I know this causes some angst, but is mandated by some of the European regulations under which the scheme operates. A bit vague I know, but never looked into matter beyond instruction from DMQ. Renumeration on a fair basis is one thing, but extending that to obtaining stalking could risk the appearance of bias on the AW - ie could be construed as a bribe.
No AW worth their salt will want to risk that.
If the implication is that an AW is seeking ongoing rights to shoot over a piece of ground - as part of witnessing a candidate then, as MS says, they should be reported.
To be honest, I've never encountered it, it has never once come up in conversation etc so never assumed it was a required note for the paperwork.
If it is an issue, then absolutely should be nipped in the bud. Outwith that, there is something of a mystery/ myth situation surrounding Part 2 and the list of clarifying notes could become lengthy!