What framework governs abbreviated and extended proportionality review of a prison sentence?
Holding
An abbreviated review must compare the gravity or seriousness of the offense with the harshness of the penalty, including parole eligibility; an extended review is required only if that threshold comparison creates an inference of gross disproportionality.
Reasoning
The Eighth Amendment and article II, section 20 of the Colorado Constitution prohibit only sentences that are grossly disproportionate, not merely harsh. Courts must give substantial deference to the legislature's choices about punishment, and successful proportionality challenges to terms of imprisonment remain exceedingly rare.
At the first step, called abbreviated proportionality review in Colorado, a court must assess both the offense's gravity and the penalty's harshness. Gravity depends on such matters as the harm caused or threatened and the offender's culpability. Harshness includes the defendant's parole eligibility because parole may substantially reduce the actual time of confinement.
A crime designated per se grave or serious permits a court to skip the factual gravity inquiry, but it does not permit the court to ignore the penalty's harshness. The court disapproved earlier language suggesting that the presence of a grave or serious offense and parole eligibility automatically ends the analysis without a genuine abbreviated review.
Only when the abbreviated review raises an inference of gross disproportionality does a court conduct an extended review. At that second step, the court compares the challenged sentence with sentences for other crimes in Colorado and with sentences imposed for the same crime in other jurisdictions; prior Colorado cases incorrectly described the first comparison as one involving other offenders convicted of the same crime in Colorado.