
Border control is a checkpoint that individuals and goods must pass through when entering or exiting a country. Immigration officers at border control check travellers' passports and visas to ensure they have the right to enter a country, while customs officers check travellers' belongings to ensure they are legal and within limits. Border control measures vary depending on the country and can include facial recognition, fingerprinting, and iris scanning. Some countries, like the UK, offer ePassport gates for faster border control processing.
| Characteristics | Values |
|---|---|
| Purpose | To check travellers' documents, their right to enter a country, and whether they are carrying anything illegal or restricted. |
| Documents Checked | Passport, visa, national identity card, eVisa, BRP. |
| Processes | Facial recognition technology, fingerprint checks, iris scanning, customs declaration. |
| Questions Asked | Purpose of the trip, duration of stay, places to be visited, what is being brought into the country. |
| Items Restricted | Alcohol, tobacco, meat, produce, plants, art, gifts, and other prohibited items. |
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What You'll Learn

Passport checks
Border control is a checkpoint that travellers must pass through when exiting or entering a country. It is also sometimes used to define an area composed of several countries that form a customs union or a customs territory. At border control, travellers are checked through customs and immigration. Immigration, also known as passport control, involves checking the passports and right to enter a country of those travelling from one country to another. Customs, on the other hand, involves checking the items travellers are carrying to ensure they are legal and within limits.
At border control, your passport or national identity card will be checked, and you may be asked a variety of questions. These questions may include whether your trip is for business or pleasure, how long you will be in the country, what you do for a living, and what cities you will be visiting during your stay. Your fingerprints may also be checked at border control and compared to those on your eVisa or BRP.
In some countries, a photo may be taken of people entering the country. For example, the United States intends to implement facial recognition technology for passengers departing from international airports to identify those who overstay their visas. In the UK, automatic ePassport gates at some airports use facial recognition technology to check travellers' identities against the photo in their passports.
In addition to passport checks, customs enforcement at borders can also entail collecting excise tax and preventing the smuggling of dangerous or illegal goods. A customs duty is a tariff or tax on the importation or exportation of goods. In many countries, border controls for arriving passengers at airports are separated into red and green channels to prioritise customs enforcement. Within the European Union's common customs area, airports may operate additional blue channels for passengers arriving from within that area.
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Visas and immigration
At passport control, you will be faced with options such as EU or non-EU, and you must have your passport open at the photo page ready for scanning. If your passport has a 'chip' on it, you can use the automatic ePassport gates at some airports. These gates use facial recognition technology to check your identity against the photo in your passport.
Upon arriving at the desk of an immigration agent, you'll likely be asked a variety of questions, such as whether your trip is for business or pleasure, how long you'll be in the country, what you do for a living, and what cities you'll be visiting. Your fingerprints may also be checked at border control, and these will be verified against the ones on your eVisa or BRP.
Customs duties apply to certain items like alcohol, tobacco, and gifts. Some goods like meat, produce, and certain plants are prohibited from entering countries like the US without proper approval. Anything you bought, inherited, or received as a gift while travelling may need to be declared at customs. Failing to declare prohibited items could result in fines or penalties, especially for high-value goods.
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Customs checks
Border control is a broad term that covers customs and immigration checks. Customs checks are about inspecting the goods that travellers are carrying with them. Customs duties apply to certain items like alcohol, tobacco, and gifts. Each country has its own laws and regulations for the import and export of goods, and customs authorities enforce these. For example, the United States limits the amount of alcohol travellers can bring into the country to one litre duty-free, after which a customs duty of 3% per litre is imposed.
Some goods like meat, produce, and certain plants are prohibited from entering specific countries without proper approval. For instance, meat and produce are generally prohibited from entering the US, though there are exceptions for cured or processed products depending on the packaging. Plants are often prohibited to prevent the spread of pests, and this can extend to crafts made from plant materials.
In addition to preventing the entry of restricted or forbidden goods, customs controls also enforce policies on the export of goods. For example, some countries forbid certain items deemed "cultural treasures" from leaving their borders. Customs enforcement also includes collecting excise tax and preventing the smuggling of dangerous or illegal goods.
During customs checks, travellers may be asked if they have anything to declare. This includes anything bought, inherited, or received as a gift while travelling. Failing to declare prohibited items can result in fines or penalties, especially for high-value goods.
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Biometric identification
Border control refers to the inspection of goods and individuals moving across borders to ensure compliance with border control measures. This includes passport checks, visas, customs, transiting, and layovers.
- Facial Recognition: This technology compares an individual's facial features with those stored in a database, often in conjunction with passport photos or visa images. It is used at ePassport gates and boarding gates, expediting the identification process and reducing the need for manual inspections.
- Fingerprint Recognition: Fingerprint recognition is another widely used biometric modality. Border control agents may compare fingerprints taken at the checkpoint with those stored on eVisas or other travel documents. This method ensures accurate identification and helps prevent identity theft, as fingerprints are unique to each individual.
- Iris Scanning: Iris scanning is a highly secure form of biometric identification. The intricate patterns of the iris are unique to each person, making it extremely difficult to replicate. The International Civil Aviation Organization (ICAO) has standardised the use of iris scanning, along with facial recognition and fingerprint recognition, for e-passports since 2006.
- Surveillance and Border Security: Biometric recognition extends beyond checkpoints and can be utilised for border surveillance. High-resolution cameras and sensors installed along borders can remotely identify individuals, helping to prevent illegal crossings and enhancing national security.
- Self-Service Kiosks: Biometric identification can streamline processes at self-service kiosks within airports. Passengers can print boarding passes without carrying any physical identification documents if their biometric data is registered.
- Fraud Detection: Biometric systems can also enhance the detection of fraudulent documents and visa overstays. By comparing biometric data with information in databases, border control officers can identify discrepancies and take appropriate action.
- Implementation and Challenges: The United States Customs and Border Protection Agency (CBP) is actively implementing biometric entry-exit systems at US airports. However, challenges exist, including privacy concerns, stakeholder support, infrastructure issues, and the need to improve biometric matching rates.
In conclusion, biometric identification is a critical component of modern border control, offering increased security, accuracy, and efficiency in identifying travellers. As technology advances, we can expect further refinements and broader adoption of biometric solutions at airport border controls worldwide.
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Prohibited items
Border control refers to the customs and immigration checks that travellers must pass through at international airports. Immigration officers check a traveller's passport and right to enter a country, while customs officers check the items a traveller is carrying to ensure they are legal and within limits.
Each country has its own laws and regulations regarding the import and export of goods. Customs authorities enforce these laws and regulations, which can include collecting excise tax and preventing the smuggling of dangerous or illegal goods.
Items prohibited from entering a country often include:
- Meat and produce (with some exceptions for cured or processed products)
- Plants (to prevent the spread of pests)
- Alcohol and tobacco (which are subject to duties and taxes)
- Drugs and drug paraphernalia (unless prescribed for a medical condition)
- Firearms and ammunition (which may be subject to temporary export exceptions)
- Certain pets and animals (which may require a quarantine period)
- Art or cultural treasures that are forbidden from leaving their country of origin
In addition to prohibited items, some goods may be subject to duties or taxes if brought in certain quantities. For example, gifts, alcohol, and tobacco may be subject to customs duties. Travellers may also be asked to declare any items purchased, inherited, or received as gifts while travelling. Failing to declare prohibited items can result in fines or penalties, especially for high-value goods.
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Frequently asked questions
Border control at the airport is a checkpoint where international travellers are inspected for compliance with border control measures. Immigration officers check passports and the right to enter a country, while customs officers check the items travellers are carrying to ensure they are legal.
Immigration is about the people travelling from one country to another. Customs is about the goods those people are carrying with them.
You may be asked whether your trip is for business or pleasure, how long you will be in the country, what you do for a living, and which cities you will visit. You may also be asked to provide fingerprints or a photo for biometric identification.











































