The duties of a constable vary depending on the jurisdiction, but generally, they are law enforcement officers who serve the justice courts. Here are some of the common duties of constables based on the search results:

• Serve legal documents: Constables are responsible for serving legal documents such as subpoenas, temporary restraining orders, and citations.

• Enforce civil and criminal process: Constables and their deputies serve and enforce civil and criminal process for state institutions, litigators, courts, private citizens, and prosecutors.

• Provide bailiff services: Constables provide bailiff services for the justice of the peace court(s) within their precincts.

• Make arrests: Constables have the power to make arrests for felony crimes and breaches of the peace committed in their presence or by warrant anywhere in their jurisdiction.

• Enforce traffic laws: Constables have the power to enforce traffic laws and issue traffic citations.

• Conduct investigations: Constables may conduct criminal investigations and file criminal charges.

• Transport prisoners: Constables may transport prisoners.

• Maintain peace and order: Constables are responsible for maintaining peace and order, preventing the commission of crimes, and arresting offenders.

It is important to note that the duties of constables may vary within individual counties and states.