The Federal Bureau of Prisons protects society by confining offenders in the controlled environments of prisons and community-based facilities that are safe, humane, cost-efficient, and appropriately secure, and that provide work and other self-improvement opportunities to assist offenders in becoming law-abiding citizens.
FEDERAL BUREAU OF PRISONS WEB SITE:
The U.S. Probation and Pretrial Services System carries out probation and pretrial services functions in the U.S. district courts. Through its officers and other employees, the system works to make the criminal justice process effective and the public safe.