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How to perform an intervention
Consult with a professional.
To ensure the best chances for success, you should consult with someone who has experience helping addicts and conducting interventions. A professional interventionist will be able to guide you and other family member through the process, increasing chances that the intervention will be successful.
You can meet with the professional beforehand to plan things out, and you may even want to invite him or her to the intervention to act as a facilitator. It's especially important to consult with a professional if the following is true : The person has a history of mental illness.