I have loged an FIR u/s 406 & 420 against my wife as she took gold ornaments from my house belonging to me and now denies having it when it was given back. These gold ornaments were given as gifts by my relatives and they have disposed off the original bills as it was of no use to them. The police are asking me for original bills or they say they will file B report. Though there are eyewitness statements saying she took the gold from my house. Are the bills required or is it the police duty to check my wifes house and her bank locker for the ornaments.