What is the primary function of peace officers as defined by Texas law?

The primary function of peace officers as defined by Texas law is to maintain law and order and protect citizens. This role encompasses a range of responsibilities, including enforcing laws, preventing crime, and ensuring public safety. Peace officers are tasked with responding to emergencies, conducting investigations, and assisting the community in various ways to uphold justice and order within society.

The other options do not encapsulate the primary responsibilities designated to peace officers. While issuing fines for minor infractions and serving civil summonses are part of various law enforcement roles, they do not represent the overarching purpose of a peace officer's duties. Providing legal advice is outside the scope of their authority, as peace officers are not trained to give legal counsel to the public; instead, their focus is on enforcing the law and safeguarding the communities they serve.