We map out the rising number of high-tech surveillance and deterrent systems facing asylum seekers along EU borders
From military-grade drones to sensor systems and experimental technology, the EU and its members have spent hundreds of millions of euros over the past decade on technologies to track down and keep at bay the refugees on its borders.
Poland’s border with Belarus is becoming the latest frontline for this technology, with the country approving last month a €350m (£300m) wall with advanced cameras and motion sensors.
