EU countries use an array of specialised technology to monitor borders and deter refugees

AI lie detectors that scan the faces of asylum seekers as they answer questions have been trialled in Hungary, Greece and Latvia

Poland has sent automated texts telling people not to attempt entry from Belarus, as well as planning to build a 200km border wall

Greece has deployed a sound cannon that can direct blasts of up to 162 decibels towards refugees trying to cross its border with Turkey

Frontex is surveilling the Mediterranean with drones made by Israeli arms companies

AI lie detectors that scan the faces of asylum seekers as they answer questions have been trialled in Hungary, Greece and Latvia

Poland has sent automated texts telling people not to attempt entry from Belarus, as well as planning to build a 200km border wall

Frontex is surveilling the

Mediterranean with drones made by Israeli arms companies

Greece has deployed a sound cannon that can direct blasts of up to 162 decibels towards refugees trying to cross its border with Turkey

AI lie detectors that scan the faces of asylum seekers as they answer questions have been trialled in Hungary, Greece and Latvia

Poland has sent automated texts telling people not to attempt entry from Belarus, as well as planning to build a 200km border wall

Frontex is surveilling the

Mediterranean with drones made by Israeli arms companies

Greece has deployed a sound cannon that can direct blasts of up to 162 decibels towards refugees trying to cross its border with Turkey