According to your analysis of the situation, although your husband's case has entered the criminal justice process, there is a lot of room for manoeuvre. If handled properly, you can fight for not approving the arrest or not prosecuting, or even withdrawing the lawsuit in the procuratorate! As the case has arrived at the procuratorate, it missed the prime time for lawyers to intervene in the investigation stage. Please hurry up and don't miss the plane again!
As for your husband's case, only professional criminal defense lawyers are involved in handling it at present. Only through the active defense work of criminal defense lawyers, such as plea bargaining, the exclusion of illegal evidence, and the defense of original sin, can we successfully reverse the unfavorable situation, minimize the punishment, and enable your husband to return to society as soon as possible and continue his family life.