Harassment and Threats to my mother by Neighbours

Sure, here is your request for help, rephrased as a question: --- Dear [Recipient], My elderly neighbors constantly target my mother, insulting, abusing, and threatening her daily, regardless of the time. Whenever they find my mother alone, they start their abuse. They have managed to influence everyone on the street not to help us in any way. When we seek help from others, these neighbors become even more provoked that their despicable acts are being exposed. The male from the couple always insults my mother using derogatory words and always peeping on my mother whenever he can. My father is blind and cannot defend us, which these neighbors exploit to escalate their harassment daily. Although we have CCTV cameras installed at our house, they have identified the areas not covered by the cameras and avoid those areas when attacking my mother. No one on the street helps us or comes to our aid, even when we are physically attacked. They sit outside on the street, observe my mother’s movements, and target her with verbal attacks when she is alone. How can I file a complaint against my neighbors when no one is willing to tell the truth to the police, and we cannot capture their atrocities on the CCTV cameras? We are desperate for help and protection. Sincerely, Vinay