*657 Opinion
Thе People appeal from an order admitting Michael Ray Smith to probation. Respondent had been charged by information with assault by means of force likely to produce great bodily injury (Pen. Code, § 245). Respondent at first pleaded not guilty. During pretrial proceedings, the court granted respondent’s motion to withdraw his former pleа of not guilty and, over the objection of the prosecutor, permitted him to plead guilty to violation of Penal Code section 242 (battery). The prosecutor objected on the basis that it was improper for the court in effect to negotiate its own plea bargain with the defendant; it was also pointed out that the offense to which a plea of guilty was being accepted had not been charged by the prosecutor and was not a lesser offense included within the charged assault. Nevеrtheless, the court accepted the plea and admitted Smith to probation.
The court’s rationale in allowing respondent, to withdraw his earlier plea and to plead guilty to another offense was: “It’s my understanding the present state of the law, the Court by way of a disposition could offer a plea to something that is probably rеlated to the main charge.”
A court may, either upon its own motion or upon motion of the prosecuting attorney, order that an action be dismissed “in furtherance of justice.” In so doing, the court must set forth its reasons for dismissing the charge in an order entered upon the minutes. (Pen. Code, § 1385.) The requirement of a statement of the reasons for dismissing the action is mandatory, despite the broad discretionary power of the court to order such a dismissal in furtherance of justice. (People v.
Orin
(1975)
“Plea bargaining” is a process by which the People, represented by the prosecutor, and a defendant negotiatе an agreement for the disposition of criminal charges against the defendant.
(People
v.
West
(1970)
Respondent argues that the court’s action was nevertheless within the judicial function. The powers of state government are separated among the legislative, executive, and judicial branches, and the powers of one branch may not be exercised by another branch. (Cal. Const., art. III, § 3.) The judicial power is vested in the courts. (Cal. Const., art. VI, § 1.) In recent years it has been repeatedly held that this principle prohibits any requirement of concurrence by thе prosecutor in the judicial disposition of criminal cases by way of striking charged prior offenses
(People
v.
Tenorio
(1970)
Congruently, the district attorney, part of the executive branch, is the public prosecutor charged with conduсting all prosecutions on behalf of the People: This function includes instituting proceedings against suspected of criminal offenses, and drawing up informations and indictments. (Gоv. Code, §§ 26500-26502.) The discretionary decision to bring criminal charges rests
exclusively
in the grand jury and the district or other prosecuting attorney. (See
People
v.
Adams
(1974)
Esteybar
v.
Municipal Court, supra,
The probation order is reversed with directions to vacate the plea of guilty to violating Penal Code section 242 and reinstate the plea of not guilty to violating Penal Code section 245.
Caldecott, P. J., and Emerson, J., * concurred.
Notes
Retired judge of the superior court sitting under appointment by the Chairman of the Judicial Council.
