Interventions vary in complexity depending on the condition of the individual of concern and the outcome hoped for by the family.
On the simple end of the spectrum, the hope may be that the subject attend meetings and /or seek professional counseling. In more severe cases the goal is for the subject to enter an in-patient setting. This will typically be a thirty day in-patient program where all pertinent issues are addressed.
The above explanation of an intervention is intentionally brief. Each family situation is both complex and unique. Because of this any further questions are best answered by a phone call to me.
Paul Markusen