The “square net XXL” operation, launched by Interior Minister Gérald Darmanin, began in Marseille in mid-March, then spread to several cities in France. These operations are intended to occupy the ground to put an end to drug trafficking and restore order. A campaign whose effectiveness leaves specialist police officers and magistrates perplexed. The RFI guest finds his operations inefficient and dangerous, because they mobilize a lot and displace traffic. Yann Bisiou, lecturer in private law and criminal sciences in Montpellier, specialist in public drug policies, speaks.