Modern criminal law approaches the analysis somewhat differently. Using a framework from the American Law Institute's Model Penal Code, homicide is a "results" offense in that it forbids any "purposeful" or "knowing" conduct that causes, and therefore "results" in the death of another human being. "Purposeful" in this sense means the actor possessed a conscious purpose or objective that the result (i.e. the death of another human being) be achieved. "Knowing" means that the actor was aware or practically certain that a death would result, but had no purpose or desire that it occur. Many states still adhere to older terminology, relying on the terms "intentional" to cover both types of mens rea: "purposeful" and "knowing."