Surely, if someone has injured you so badly Answerpls, don't you wish to proceed with a prosecution and compensation? I'm sure the police will continue the case if you tell them that's your wish. After all, why should you as a victim not be recompensed for your injury and why should you allow your assailant to walk away scot free? If you are frightened of any retribution, that is something you should also tell the police and they will (hopefully) act accordingly to protect you. Otherwise, your assailant has won and will be more confident in intimidating or assaulting you or someone else in the future. Don't you think you should pursue this, even if it's for someone else's sake?