After former Stanford University student Brock Turner was convicted in March of three felony counts of sexual assault, the judge had to decide his punishment.

Turner, 20, faced a maximum sentence of 14 years in prison. But a probation officer assigned to the case recommended that Turner be given a "moderate" jail term followed by probation.

Prosecutors pushed back vigorously, saying Turner deserved six years in state prison.

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On June 2, Santa Clara County Superior Court Judge Aaron M. Persky sentenced Turner to six months in jail and three years of probation. Turner must also register as a sex offender. The sentence provoked an uproar in California and beyond.

Court records released on Friday include the prosecution's 28-page memo to Persky.

In it, District Attorney Jeffrey F. Rosen and Deputy District Attorney Alaleh Kianerci argue that Turner should be given a "substantial prison term".

They wrote: "Ultimately, the fact that the defendant preyed upon an intoxicated stranger on a college campus should not be viewed as a less serious crime than if he were to assault a stranger in Downtown Palo Alto."