Do the fourth officials monitor what is going on in the form of interaction between the dugout and crowd. Regarding the beer throwing incident; did the stewards identify the offender! If incidents are reported to the ref if he/she suspends the game until
the culprit(s) is/are ejected it might help!
It should also be possible to.do an audio recording of any direct verbal
abuse and this handed to the ref to.include in his match report!
Could dugouts be organised in such a way that a teams own supporters are behind each one?