By bizn_fun 
The first time they use the new system, people from most non-EU countries – including the UK – will have to register biometric information while having their passport scanned.
This may be done with a border officer, depending on where people travel to.
Flight passengers will register when they arrive at their destination airport.
But registration will be done as you leave the UK if you are crossing the English Channel by ferry from the port of Dover, taking the Eurotunnel shuttle to France through the Channel tunnel, or getting the Eurostar train.
At these places, passengers will have to follow the instructions on kiosks – automated machines installed in dedicated areas.
The machines will scan each passport, then take fingerprints and a photo.
Children under 12 won’t have to provide fingerprints. Staff should be on hand to help.
The machine’s screen will also present travellers with four questions about their trip, such as confirming where they will be staying and that they have enough money.
However, at Eurotunnel, those questions will be asked by border officers instead, and only on a discretionary basis.