For years, advocates of criminal justice reform in Massachusetts have been critical of the school zone law, which carries mandatory minimum sentences for drug crimes that take place within 1,000 feet of school property. While the law was passed in the name of public safety and the protection of children, critics say it's so broadly drawn that it's ineffective, and that it unfairly penalizes certain defendants on the basis of where they live. Now reformers have found an ally in the Statehouse's corner office. Gov. Patrick announced a proposal to dramatically reduce the size of the school zones, from 1,000 to 100 feet, as part of a plan to address a staggering projected state budget gap of $1.2 billion. The plan also includes proposals to close two state prisons and to ease sentencing laws for non-violent drug offenders, all moves the governor contends would save much-needed money.