Friends and families want help for loved ones. They have tried their best, and come seeking an intervention because their way hasn�t worked. This is very painful process.
The intervention starts when the family and friends seek help. It is a time to learn new ways of coping, and it is a time to practice creating change. There are many resources to learn from and to use. For example, attending Al Anon is a great place to start.
I can make other specific recommendations and help in this intervention process if you wish.