There are level to gambling addicts If the gambling addict is already harming himself and becomes a menace to his family and other people, they should be sent to a correctional facility but if the addiction is moderate, then a consultation with a professional which will give him a plan to overcome his addiction is the one that is needed.
But its important that on the first sign of addiction, the gambler should be aware of it and his family so addiction can be stopped at the right time.