In MA, a Cahill disposition means instead of the penalties of a second offense( with lifetime lookback) that includes a mandatory 60 days jail sentence or 14 day in patient program you may be able to negotiate probation with the 24D program( first offender’s disposition). In addition, the license suspension would allow for a hardship with installation of ignition interlock device. The first offense must be older than 10 years. At times, this may be a helpful alternative to trial.