Steve S. answered 04/08/19
EXCELS @ Teaching, Practice: POLITICAL SCIENCE/GOVERNMENT & POLITICS
Only members of the United State Congress (one of the "branches" of American Government) are among the very few, and Constitutionally authorized, than could (words used) "alter" the nation's Federally-Administered Criminal Justice System. Bills and Regulations can be introduced onto the floors of the House and Senate chambers, then can be ultimately voted upon by members. An approval of a bill or regulation could lead to an "alteration" (revamped prison sentencing is one of many modern-day examples). Another part of American governance--the Presidency--can create, sign an Executive Order to "alter" a criminal justice circumstance.Yet historically, this mechanism of alteration occurs rarely and is often subject to a review by a "Judiciary" arm of government.