What is the case law on concurrent sentences for assault and assault with intent to pervert the course of justice?

The relevant factors to determine whether to impose consecutive rather than concurrent sentences are whether the crimes and their objectives were predominantly independent of each other; the crimes involved separate acts of violence or threats of violence; the crimes were committed at different times or separate places, rather than being committed so closely in time and place as to indicate a single period of aberrant behavior, and any circumstances in aggravation or mitigation. (Cal. Rules of Court, rule 4.425(a), (b); People v. Alvarado (2001) 87 Cal.App.4th 178, 194.)