What is the most significance criminology or juvenile policy program

What is the most significance criminology or juvenile policy program. Program or project change proposed or made in the last 10 years. Share whether this change can be best labeled as “planned” or “unplanned”. Is there evidence or does it appear that the seven staged model or portions of it were used in the planning of change or are these elements present now? What does the presence lack of this planning mean for the likelihood of success?

Note: Planned change involves planning ( persons, group or person ) have explicitly thought about the problem and develop a specific solution. Unplanned means that little explicit or proactive planning has been undertaken. Comes as reaction to crisis.