Installation of cctv camera

There is a property dispute going on at my in laws house. Two rooms were occupied by my father in laws sister forcibly, she died recently and her son in laws and daughter have now occupied those rooms. We have already filed a civil suit the problem is the other party has been continuously harassing us physically and mentally and have been threatening us, as my husband works abroad and we are just three female members staying in the house. They had also built an illegal gate and locked it and blocked our common passage way to the backyard of our house. I had also filed a complaint at womens cell regarding the harassment and continuous Eve teasing, also they were sending me anonymous letters by post giving rape threats, so for my safety I had installed a cctv camera and the women cell gave me permission to install it for my safety. Now after six months of cctv installation the other party tried to cover up the camera by fixing a dish to satellite right in front of the camera to block the camera view. What should I do?