Just a few days after the November 13 terror attacks, a large-scale police raid took place in the northern Paris suburb of Saint-Denis. French intelligence had received a tip-off that the suspected ringleader of the attacks was hiding in a residential building and police stormed the block of flats. Many residents were evacuated from their homes. More than a year on from that traumatising night, some say the state has still not helped them to find a new home. Our reporters went to meet them.