You're missing the point. If the crime on the books is "criticizing the government," you can have all your procedural due process safeguards of presumption of innocence and proof beyond a reasonable doubt. But I'll still get you convicted and thrown in prison for the rest of your life, Gulag-style.

Again, folks: it's necessary to ensure that criminal laws on the books are just and reasonable (see malum prohibitum vs. malum in se) and that due process is followed when enforcing those laws. Due process when enforcing a law that's unjust leads to unjust results.