Jack Mccauley's letter belittling the Firearms Safety Act fails to mention the most important parts of the new law — the requirement that handgun purchasers get a fingerprint-based license and the authority for the state police to regulate firearms dealers ("O'Malley, Brown are kidding themselves with gun law," Oct. 7). According to Professor Daniel Webster of the Johns Hopkins Bloomberg School of Public Health and other gun violence prevention experts, laws like these in other states are working to keep guns out of the wrong hands and save lives. We know that that the states that have had fingerprint licensing for decades have substantially lower gun deaths than similar states that do not have such laws. When Missouri repealed a similar law in 2007, gun deaths in that state went up while gun deaths were going down nationally and in neighboring states. And, although it is too early to directly attribute this to our new law, we know that in Maryland there has been a 15 percent drop in gun deaths in the first eight months of 2014 compared to a similar period in 2013.