If an enhancement is punishable by one of three terms, the court must, in its sound discretion, order imposition of a sentence not to exceed the middle term, unless there are circumstances in aggravation that justify the imposition of a term of imprisonment exceeding the middle term, and the facts underlying those circumstances have been stipulated to by the defendant, or have been found true beyond a reasonable doubt at trial by the jury or by the judge in a court trial.
(Subd (a) was adopted effective January 1, 2018.)
If the court has discretion under section 1385(a) to strike an enhancement in the interests of justice, the court also has the authority to strike the punishment for the enhancement under section 1385(b). In determining whether to strike the entire enhancement or only the punishment for the enhancement, the court may consider the effect that striking the enhancement would have on the status of the crime as a strike, the accurate reflection of the defendant's criminal conduct on his or her record, the effect it may have on the award of custody credits, and any other relevant consideration.
(Subd (b) was adopted effective January 1, 2018.)
Cal. R. Ct. 4.428
Advisory Committee Comment
Case law suggests that in determining the "furtherance of justice" the court should consider the constitutional rights of the defendant and the interests of society represented by the people; the defendant's background and prospects, including the presence or absence of a record; the nature and circumstances of the crime and the defendant's level of involvement; the factors in aggravation and mitigation including the specific factors in mitigation of section 1385(c); and the factors that would motivate a "reasonable judge" in the exercise of their discretion. The court should not consider whether the defendant has simply pled guilty, factors related to controlling the court's calendar, or antipathy toward the statutory scheme. (See People v. Romero (1996) 13 Cal.4th 947; People v. Dent (1995) 38 Cal.App.4th 1726; People v. Kessel (1976) 61 Cal.App.3d 322; People v. Orin (1975) 13 Cal.3d 937.)
How to afford great weight to a mitigating circumstance is not further explained in section 1385. The court is not directed to give conclusive weight to the mitigating factors, and must still engage in a weighing of both mitigating and aggravating factors. A review of case law suggests that the court can find great weight when there is an absence of "substantial evidence of countervailing considerations of sufficient weight to overcome" the presumption of dismissal when the mitigating factors are present. (People v. Martin (1996) 42 Cal.3d 437.) In exercising this discretion, the court may rely on aggravating factors that have not been stipulated to by the defendant or proven beyond a reasonable doubt at trial by a jury or a judge in a court trial. (People v. Black (2007) 41 Cal.4th 799.)