Before the Independent Regulatory Commission made their descion there are two steps taken
The first is that the FA disciplinary team will have looked at the video evidence and formed a view that there appears to be case to answer.
The next step is that all that video evidence is viewed by three of the ex elite referees they will say if in their opinion there is a case to answer. It’s worth noting that those three ex refs make their descion without the knowledge of who the other two are. All three have to agree that there appears to be an offence
If all three ex refs all agree a charge is laid and the player is invited to make any representations they may wish.
The last step is that a commission made up of an ex player, ex ref and an ex manager sit and form an opinion based on the submissions and video evidence.