Do they check your bags at the border?
Do they check your bags at the border? Generally, customs officers may stop people at the border to determine whether they are admissible to the United States, and they may search people's belongings for contraband. This is true even if there is nothing suspicious about you or your luggage.
What must be declared at the border?
You must declare all items you purchased and are carrying with you upon return to the United States, including gifts for other people as well as items you bought for yourself. This includes duty-free items purchased in foreign countries, as well as any merchandise you intend to sell or use in your business.
What do they check during customs?
Usually, the export or import declaration form, packing list, etc. For example, customs officers will inspect the carton boxes to see if the shipment info is consistent with the export declaration form, such as the product name, quantity, and so on.
Does customs scan passport or just look at it?
Travelers are prompted to scan their passport, take a photograph using the kiosk, and answer a series of CBP inspection related questions verifying biographic and flight information. Once passengers have completed the series of questions, a receipt will be issued.
How do you know if you are flagged by customs?
There are signs that will indicate you have been flagged for additional screenings: You were not able to print a boarding pass from an airline ticketing kiosk or from the internet. You were denied or delayed boarding. A ticket agent “called someone” before handing you a boarding pass.