The prosecutor in a criminal case shall:
Mich. R. Prof'l. Cond. 3.8
Comment:
A prosecutor has the responsibility of a minister of justice and not simply that of an advocate. This responsibility carries with it specific obligations to see that the defendant is accorded procedural justice and that guilt is decided upon the basis of sufficient evidence. Precisely how far the prosecutor is required to go in this direction is a matter of debate. Cf. Rule 3.3(d), governing ex parte proceedings, among which grand jury proceedings are included. Applicable law may require other measures by the prosecutor, and knowing disregard of those obligations or a systematic abuse of prosecutorial discretion could constitute a violation of Rule 8.4.
Paragraph (c) does not apply to an accused appearing pro se with the approval of the tribunal. Nor does it forbid the lawful questioning of a suspect who has knowingly waived the rights to counsel and silence.
The exception in paragraph (d) recognizes that a prosecutor may seek an appropriate protective order from the tribunal if disclosure of information to the defense could result in substantial harm to an individual or to the public interest.
In paragraphs (b) and (e), this rule imposes on a prosecutor an obligation to make reasonable efforts and to take reasonable care to assure that a defendant's rights are protected. Of course, not all of the individuals who might encroach upon those rights are under the control of the prosecutor. The prosecutor cannot be held responsible for the actions of persons over whom the prosecutor does not exercise authority. The prosecutor's obligation is discharged if the prosecutor has taken reasonable and appropriate steps to assure that the defendant's rights are protected.