I have read alot of members advising that she should arrest the operator and that is not a good advise. Doing that will be her bringing more problems for herself with the operator who obviously will have more money than her, and with people around that place who will begin to see her as a bad girl. My advise will be a bit harsh but that is what will solve the problem. She should set the brother up so that his brain can be formated. Formating the young gambler's brain is what will do it. Let her arrange with a soldier who will walk into the gambling shop when she is sure the brother will be there. But she has to pretend not knowing the soldier. Just make it look like a coincidence. And the soldiers knows what to do when he sees an underage gambler. By the time he frog jumps him or takes him to the barracks for proper discipline, the next time her brother hears of gambling he will run far off.