You either see it or you don't and advise ref accordingly.
A good practice for this comes from
this video.
I wouldnt call it "exemplary", but I'd at least use it as a good reference where, if you ARE going to do something about it, this is what you might think of doing.
The key is that you're giving the illusion of parity among the teams and a "fair shake". The captains will likely accept that there is no actual sanction that you can give, and the opposition isnt expecting more than a "let's make sure this doesnt happen". Use a lot of words like "
both of you need to maintain discipline", "
we need to ensure this type of bahaviour is stamped out"; a lot of inclusive statements so that neither feels like you're picking on them specifically, but you're making a stink about it if you do.
Remember that this was only done b/c it was raised directly with the referee. If I saw a player brutally cut up out there but had no idea why, I wouldnt automatically assume it was foul play. I'm not going to be putting myself in a position where all I see is the end result but have no idea how it started, by whom, and when. I would have no leg to stand on.
Why is it worth a chat? dIt's a physical sport, with a lot of collisions. People get a black eye just through the normal course of events.
Absent evidence of foul play, or a complaint of foul play, I'd let things continue.
I'm in this boat.
Dickie E said:
If an AR is going to flag something "alleged", and then ask me to get evidence on his behalf, there's probably no way I'm comfortable following through. Either he has seen it, or he hasnt. I am not expecting him/her to see everything that happens, and I accept that we will miss things, but refereeing on a hunch and sticking a flag out for something that they only "think" they've seen does not convey any message of competence on their part, and undermines any credibility in decision making within the team-of-3. Ultimately he's asking me to stick my neck on the line for something that might not have happened; once the flag is out, there's a huge spotlight on the team-of-3. If I tell the captains that we "THINK" we've seen alleged foul play, I will have used up ALL of my chit-points in that decision. I'm not saying I wouldnt do it (a LOT would depend on the temperament of the game, my trust in the AR, and his/her ability to sell this decision), but it's not something I would ever expect to hear from them.