Commonwealth of Pennsylvania v. Stevenson Leon Rose

Summary

This concurring opinion addresses whether applying an intervening legislative enactment to criminal conduct completed before the enactment’s effective date violates the constitutional prohibition against ex post facto laws. The opinion emphasizes fair notice and culpability requirements under the Pennsylvania Crimes Code and distinguishes the Commonwealth’s position concerning crimes that were not fully consummated when the legislation took effect. Chief Justice Saylor joins the majority subject to these differences.

Holdings

1. As a general rule, the ex post facto prohibition is implicated when a legislative enactment increases the adverse legal consequences of criminal acts completed before the law's effective date.
2. Ex post facto analysis should address the culpability requirements of the Pennsylvania Crimes Code and the government's obligation to provide notice of the criminal-law consequences of conduct, rather than focusing narrowly on whether a crime is intentional or unintentional.

Questions Presented

1. Whether the ex post facto prohibition is implicated when legislation increases the adverse legal consequences of criminal conduct completed before the legislation's effective date.
2. Whether, for ex post facto purposes, the date of the offense generally is the date the relevant conduct occurred when the conduct was fully consummated before the intervening legislation took effect.
3. Whether analysis should focus on the broader culpability requirements of the Pennsylvania Crimes Code and the government's obligation to provide fair notice of criminal-law consequences.

Disposition

other