Oh, I understand that they should, in theory, but the attitude around here by our Police force, even toward actual noticable crimes, is... lax, to say the least. The response to a scuffle or unwanted presence at a children's top tournament being hosted by an adult would be met with very little interest unless I really pressed and sank time into resolving the issue, which could prove just as detrimental to its success.
I am simply speaking in a hypothetical "What if?" situation - were someone in a situation as such that the police would ignore the disturbance, but the disturbance was greatly interfering with the tournament/potentially invalidating it, what would be the best course of action?
The only somewhat reasonable thing I can come up with is actual martial law on a personal level - having the disruption ceased by tournament going parents, or adults present at the location, but would that be considered an interference worthy of invalidating the tournament in and of itself?
Example: I host a tournament, or attend a tournament hosted by someone younger. Altercation kicks up, involving soured kids/parents/whomever. Not large enough for police to notice, and obviously requiring more immediate attention. Do I intervene on a physical level? Obviously not going Punisher on everyone and knocking teeth out with the butt of a rifle, but restraining/separating? Would that affect the perceptions of the tournament's validity? And, beyond that point, what should be done?
(Keep in mind I am not in the physical condition to actually be a very good intervening force, but it was just an example.)