First, lawyers themselves have the right to investigate and collect evidence;
Second, the evidence obtained by lawyers does not have to be provided to the procuratorate;
Three, the court trial, the procuratorial organs and defense lawyers are the opposing sides of the prosecution and defense. Before the trial, both the prosecution and the defense have a procedure for submitting evidence to prevent one party from using new evidence to "sneak attack" and take the other party by surprise. However, if it is indeed evidence obtained after the trial, it can still be submitted on the spot at the trial after explaining the reasons. So lawyers are skilled in presenting evidence. You should strengthen communication with lawyers, and then make a judgment from the perspective of the best interests of the defendant, that is, whether it is necessary to submit evidence to the prosecution now.
Suggestion: Respect the professional opinions of lawyers and strengthen communication between the two sides.