False dowry 498A and 304B case

Hi, my brother wife took poison in an attempt to harass my family, as she wanted to live out of joint family. She was taken to hospital & 4 day she got fit. She gave a statement of false dowry, domestic violence against my brother & parents. On 5 day her brother & Bhaiya did her abortion as she was 1 mnth pregnent. This was done without my brother consent. On 6 th day her health got worse & on 11 day, she expired. Now my family members are charged with 498A section and domestic violence section. 304b is yet not applied. Autopsy report is still waited. No arrest or warrant yet published. What can we do now from our side to safe guard us?? Pls suggest.