Is the fundamental principle in the criminal justice system that sets boundaries for the government to establish clear, stable, and fair rules and to protect fundamental rights.

The rule of law  is the fundamental principle in the criminal justice system

Explanation:

The ROL is customarily accepted widely and is known to be crucial in different aspects of constitutional amendments. It contains principles that limit the government from taking actions that may be illegal to the citizens of the cities.

Therefore everybody is required to obey the law. However, there have been arguments on how the ROL should be defined. But in simple term, it is the seal places in many principles of the constitution to protect the state.