Investigate and inspect persons, common carriers, goods, and merchandise, arriving in or departing from the United States or between states to detect violations of immigration and customs laws and regulations.

Detain persons found to be in violation of customs or immigration laws, and arrange for legal action such as deportation. Determine duty and taxes to be paid on goods. Examine immigration applications, visas, and passports, and interview persons in order to determine eligibility for admission, residence, and travel in U.S. Inspect cargo, baggage, and personal articles entering or leaving U.S. for compliance with revenue laws and U.S. Customs Service regulations. Interpret and explain laws and regulations to travelers, prospective immigrants, shippers, and manufacturers. Investigate applications for duty refunds, and petition for remission or mitigation of penalties when warranted. Locate and seize contraband, undeclared merchandise, and vehicles, aircraft, or boats that contain such merchandise. Record and report job-related activities, findings, transactions, violations, discrepancies, and decisions. Collect samples of merchandise for examination, appraisal, or testing. Institute civil and criminal prosecutions, and cooperate with other law enforcement agencies in the investigation and prosecution of those in violation of immigration or customs laws. Testify regarding decisions at immigration appeals or in federal court.

Law and Government -- Knowledge of laws, legal codes, court procedures, precedents, government regulations, executive orders, agency rules, and the democratic political process. English Language -- Knowledge of the structure and content of the English language including the meaning and spelling of words, rules of composition, and grammar. Public Safety and Security -- Knowledge of relevant equipment, policies, procedures, and strategies to promote effective local, state, or national security operations for the protection of people, data, property, and institutions.

Reading Comprehension -- Understanding written sentences and paragraphs in work related documents. Judgment and Decision Making -- Considering the relative costs and benefits of potential actions to choose the most appropriate one. Speaking -- Talking to others to convey information effectively. Writing -- Communicating effectively in writing as appropriate for the needs of the audience. Active Listening -- Giving full attention to what other people are saying, taking time to understand the points being made, asking questions as appropriate, and not interrupting at inappropriate times. Critical Thinking -- Using logic and reasoning to identify the strengths and weaknesses of alternative solutions, conclusions or approaches to problems.

Oral Expression -- The ability to communicate information and ideas in speaking so others will understand. Problem Sensitivity -- The ability to tell when something is wrong or is likely to go wrong. It does not involve solving the problem, only recognizing there is a problem. Near Vision -- The ability to see details at close range (within a few feet of the observer). Written Expression -- The ability to communicate information and ideas in writing so others will understand. Written Comprehension -- The ability to read and understand information and ideas presented in writing. Oral Comprehension -- The ability to listen to and understand information and ideas presented through spoken words and sentences. Memorization -- The ability to remember information such as words, numbers, pictures, and procedures. Speech Clarity -- The ability to speak clearly so others can understand you. Perceptual Speed -- The ability to quickly and accurately compare similarities and differences among sets of letters, numbers, objects, pictures, or patterns. The things to be compared may be presented at the same time or one after the other. This ability also includes comparing a presented object with a remembered object. Number Facility -- The ability to add, subtract, multiply, or divide quickly and correctly.

Communicating with Persons Outside Organization -- Communicating with people outside the organization, representing the organization to customers, the public, government, and other external sources. This information can be exchanged in person, in writing, or by telephone or e-mail. Evaluating Information to Determine Compliance with Standards -- Using relevant information and individual judgment to determine whether events or processes comply with laws, regulations, or standards. Getting Information -- Observing, receiving, and otherwise obtaining information from all relevant sources. Identifying Objects, Actions, and Events -- Identifying information by categorizing, estimating, recognizing differences or similarities, and detecting changes in circumstances or events. Interpreting the Meaning of Information for Others -- Translating or explaining what information means and how it can be used. Documenting/Recording Information -- Entering, transcribing, recording, storing, or maintaining information in written or electronic/magnetic form. Judging the Qualities of Things, Services, or People -- Assessing the value, importance, or quality of things or people. Handling and Moving Objects -- Using hands and arms in handling, installing, positioning, and moving materials, and manipulating things. Communicating with Supervisors, Peers, or Subordinates -- Providing information to supervisors, co-workers, and subordinates by telephone, in written form, e-mail, or in person. Making Decisions and Solving Problems -- Analyzing information and evaluating results to choose the best solution and solve problems.