Killer has just been sentenced to life in Prison.. All the evidence points to him as the killer BUT there was no CCTV footage (in most cases).
Judge "I sentence you to life in prison"
Killer "But Judge, you didn't see it happen"
Judge "Good point, heres the keys to your cuffs. You're free to go"....
Divided opinion here but if pretty much everything points to VC/SFP (regardless of whether contact was made or not), I'd go with my instinct and gut feeling every time, so long as I was 99% certain of what has happened. There are so many tell-tales to whether an incident like this actually occured; crowd reaction, player injury and just as important, player reaction. I'm not just referring to the reaction of the player that was struck, but everyone around him. Think about how both sets of players would act in this case.
I've never been placed in a situation like this so I can only predict how I'd act, but there is absolutely no way I would allow a player to stay on the pitch if he has acted in a manner that brings the game into disrepute like this. There is absolutely no place whatsoever for violence (or attempted violence), racism, sexism or anything along those lines on a football pitch.
I can see both sides to the story here; "But you didn't see it happen"...Fair point but absolutely EVERYTHING points to the fact that it did. You file your paperwork and send it to your CFA and let them be the judge on whether this guy deserves a ban and a fine.