As a counterpoint to separation of powers, the principle that the president, Congress, and the Supreme Court share power over the laws of the country. The U.S. system of government is sometimes called a shared-powers system.. whip.
The Department of Justice (DOJ) is a cabinet-level agency responsible for enforcing the laws of the United States federal government. DOJ ensures public safety against foreign and domestic threats, including terrorism, and preventing crime.
United States criminal justice system flowchart. Criminal justice is the system of practices and institutions of governments directed at upholding social control, deterring and mitigating crime, or sanctioning those who violate laws with criminal penalties and rehabilitation efforts. Those accused of crime have some protections against abuse of investigatory and prosecution powers.