THE most significant part of this decision is the SCOTUS's directive to lower appellate courts that they must use a historical and evidence perspective in deciding future 2nd Amendment cases. The court rejected the two step approach where lower courts have used a means-end approach in addition to a historical approach in making their rulings. The Court stated that judges lack the experience in the field to make cost and benefits judgements. Furthermore, the decision states that the Government must justify its regulation by demonstrating that it is consistent with the Nation's historical traditions of firearm regulation. The Gov't bears the burden of proof.
