Which primary document underlies the principles and responsibilities of a peace officer?

The United States Constitution serves as the foundational document that underpins the principles and responsibilities of a peace officer. It establishes the framework for governmental power and the limits imposed on that power, emphasizing the need to protect individual rights. By adhering to the Constitution, peace officers uphold the rule of law, ensuring that their actions respect citizens' rights and freedoms.

This foundational document includes key amendments, such as those found in the Bill of Rights, which guarantee specific liberties that law enforcement must respect. While the Bill of Rights articulates particular rights, the Constitution as a whole sets the structure within which laws are enacted and enforced, making it essential for peace officers to understand and apply its principles in their day-to-day duties.

Though other options like the Code of Ethics and the Criminal Procedure Code provide important guidelines and regulations for police conduct, they are subordinate to the Constitution, which serves as the ultimate legal authority. The Constitution is, therefore, the primary document that guides peace officers in their responsibilities and duties.