This review “The Scientific Basis for Law as a Public Health Tool” was published in November 2008. The researchers from CDC identified 65 systematic reviews of studies on the effectiveness of 52 public health laws: 27 of those laws were found effective, 23 had insufficient evidence to judge effectiveness, 1 was harmful, and 1 was found to be ineffective. This is a valuable, scientific foundation’”that uses the highest relevant standard of evidence’”for the role of law as a public health tool.