How many drunks would risk a year in jail to drive home??
Not many, I'll wager.
What kinda odds ya want?
So we go up from six months to 12 months.
The problem is that the approach has been to claim the problem not the solutions.
Convictions aside, the courts aside, why not use the court system as a club to force treatment? Don't give breaks, give the opportunity to PROVE YOURSELF with treatment. The reward would be a work permit DL, failure would mean max penalties. An arestee would always have the option of taking the minimum plea offer same as always.