What action I can take if nieghbour is over occupying the common corridoor area

Couple of months back, we have bad argument happened with our neighbour. Argument was over a small incident that neighbour is always keen to over occupy(block) the common corridor (only path to our flat). When I objected, the lady kept her iron door opened covering half corridor. Then on one weekend it got more huge and we ended up putting a police complaint since the neighbour lady got violent and pick up knife to kill me. My husband put a police complaint. Police never came up, warned the neighbour and suggested to get it close with Apartment committee. Now this neighbour has got worse relationship with all of their 3 neighbour (including us) and always tend to mentally harass by keeping something or other thing in corridoor. We involved EC, they put a borderline between we two. and given some to do list to the neighbour. Now this neighbour in not putting anything in our side but putting everything on the corridor (that is the only path to our flat). hence blocking our passage. And always raise complaints for our(mine and other neighbour kids) three years toddler. since most of EC members themselves occupied the corridor but without blocking their neighbour pathway, who can help in this case. How can I raise concern and to whom to get this path way clear. They have intentionally put more than required stuff in the corridor (25, 30 Chinimitti Gamla, other garden decorative stuff, keep their 15-20 kg iron door always open, 2 bicycle, shoe rack). Its a small apartment with small corridor. Are they allowed to keep this much stuff in corridor. They neglected all warning and suggestion given by EC members also in our last discussion as well.