The decade-long research is the biggest of its kind ever completed.
A police crackdown that aims to clear a poor suburb of petty crime and street vendors before the Paris 2024 Olympics is putting pressure on an overcrowded prison operating at almost double its capacity. Villepinte is a grey, concrete detention centre in the suburb of Seine-Saint Denis. It lies 2.5 km from the Paris Arena Nord, set to host boxing and fencing competitions during the Games beginning on July 26.