My family is targeted by higher rank intelligence bureau officer

My father in law , who is above mentioned officer using his professional influence to frame case against my father. I got married six months back and we came to know that , my wife is mentally retarded ( certified by world renowned Hospital). This was hidden by her parents before marriage. Now we are proceeding for the divorce. They keep on asking to return the gold, which we turned down by stating that the process will go through court. We told them we will return everything during the divorce procedure, since we have never planned to go for cheating case against them. Now , a case has been filed by my wife against my father on abuse and illegal holding of ornaments. Her medical report states her mental age is 7 years old. We are getting calls from police station to meet . Earlier father in law has misused his position sent a IB person to the hospital where her mental checkup was done to collect the result and other things. As a common citizen, how can we get justice.?