Two therapies that I'd particularly recommend, brief intervention and motivational enhancement , are not only inexpensive, but they're also very easy to apply. Today the court system forces people into treatment in lieu of or in addition to criminal penalties, such as for drunk driving. In nearly all states, treatment systems have grown to handle DUIs and a number of other lower-level criminal activities in which a defendant has been drinking or using drugs. Family courts also frequently force people into treatment, for example when one spouse complains that the other drinks too much. Parents are often forced into treatment by state family service agencies to retain custody of a child.
Employers also coerce a lot of people into treatment, along with state bar and medical associations.
There are other ways, too, but these probably account for the bulk of the coercion. The appeals courts have uniformly ruled that AA is religious, and specifically Christian, in nature. Our book traces the very much religious and Christian origins of the group. Beyond that, forcing people to pray, even telling people that they can conceive of God any way they like, is impermissible under the U.S. Constitution. The U.S. Supreme Court hasn't ruled on the question, so there's no nationally binding precedent.