We are told, by the U.S. Supreme Court no less that sex offender registration is a collateral consequence not punishment so does not suffer ex-post facto restraints. United States v. Kebodoux involves a military person convicted at SPCM. And within the military we have case law.
But, can registration reach a point where it is in fact punitive. That’s the point of Prof. Corey Yung’s post here.
[T]he farm bill just signed into law by President Obama includes a provision denying food stamps to certain sex offenders. The provision was inserted by Senator Vitter (who ironically might be a “sex offender” who wasn’t prosecuted for hiring prostitutes) and applies to child molesters and those who commit violent sexual assaults. Notably, there are already bans on drug offenders participating in the program because there is a fear that they might trade food stamps for drugs. For sex offenders, however, it is difficult to think of any non-punitive justification for denying food stamps to sex offenders convicted before enactment of the current law. Even though the courts have bent over backwards to find various restrictions on sex offenders constitutional, it is hard to fathom a theory that would allow the Vitter amendment to be constitutionally applied to those with pre-existing convictions for sex crimes.