Regarding not returning of dowry gold and istridhan articles

Hi I am 29 years old. My husband’s mother kept all my jewellery in her bank lockers. It was a huge amount of jewellery. However the marriage fell apart after i faced lot of harassment in their house and came back to my parents home. I lodged an FIR under 498 A, section 406 with the police. Yet they didn’t return my gold jewellery. They simply returned few clothes and said i have taken my jewellery away. Post FIR, I got lockers sealed however my mother in law had accessed the lockers and withdrawn my jewellery after i left. High Court ordered Him to return my istridhan and Gave my husband interim bail. However after getting interim bail, he has become fearless and is falsely pressing on the fact that i took all the jewellery away as it was kept at home. He has a cctv footage of me taking a Small cabin bag while i left. I don’t know how to prove he has my jewellery. In high court mediation also he has said he has nothing and has given all my belongings (clothes) that were lying with him. I have bills of all dowry articles (1300gms of gold and silver). Now what should i do? Their family is very stubborn.