A professional who regulates entry of persons into United States at designated port of entry in accordance with immigration laws. Responsibilities include:

• Examines applications, visas, and passports and interviews persons to determine eligibility for admission, residence, and travel privileges in United States.
• Interprets laws and explains decisions to persons seeking entry.
• Arrests, detains, paroles, or arranges for deportation of persons according to laws, regulations, and departmental orders.
• Writes reports of activities and decisions.
• May patrol border on foot or horseback, or by airplane, automobile, or boat to detect and apprehend persons entering United States illegally and be designated Immigration Patrol Inspector.