False cases of DV to get maintenance

This is a peculiar case My friends FIL took loan from my friend. this was Personal loan(PL) is taken by friend from bank and got assurance that his(FIL) son(BIL) will repay it and indeed he was paying EMI for some times. while this PL was on , his FIL again demanded some more in same way but my friend refused. Later his wife persuaded for home loan transfer and an offer is going on to get top-up PL with the other bank.He agreed. his wife gave her cheque for ECS. so the loan amount came to her account and she gave the entire amount to her father, then only he realized they cheated. when he demanded the money back to her FIL and Wife, they gave false complaint of DV, demanding dowry to police. The police had advised both to think well before proceeding as you have two kids. The wife, BIL then stopped paying EMI of Both PL. he is already piled up with Home loan EMI. So he filed loan case against his FIL. Then she stopped paying Home loan EMI as EMI goes from her account. the Bank representatives started calling to pay EMI else surrender. he cannot pay whole EMI as already he stuck with the other two PL loans EMI. hi wife is not disclosing anythign about her salary.she is also co-applicant in HL, but not in PL. In counter the Wife, FIL sent legal notice for DV, Dowry and the loan my friend gave to FIL was repayment of loan which his FIL gave it to him(false case). Since they don't have evidence of Dowry and loan from FIL, they only filed DV and maintenance. My friend filed only Loan case and proceedings in progress. Due to COVID situation not even single hearing happened. now 18 months gone. she is raising false complaint like my friend is threatening to withdraw case, has tried to kidnap her kids, stole her jewels, and beat his father and so on. all these complaints not in one day but at some interval like weeks or months. The police did not took case yet, as they themselves know she is lying. She is also not ready for counselling. Almost 10 time both would have visited PS. they only advised and did not filed case. the Idea for her is to torture him mentally and he would walk away from home so that her maintenance case will be valid as currently they are in one house(flat). How long police will wait, if she complaints again and again. of course the complaints are false If incident happens he can record in his mobile, but how can he record false events. he asked to put CCTV at common area. As both live in separate room. but for that she refused stating privacy concern, do we have such? Actually she always keep kids in her room and wont let them meet. also no DV act will be recorded. and she will be caught for mental cruelty. so what he needs to be done? he is waiting for the his loan case to be won, they(wife,FIL) are torturing him with false police complaints every week. . These laws were created to protect women, but see how its being manipulated by women. when will men too get laws for protection.