Here are are three of the most common ways guns get into the hands of criminals. 1) Corrupt licensed gun dealers. Nearly 60% of the guns used in crime are traced back to 1.2% of gun dealers who sell guns "off the books" to straw purchasers or criminals. Which leads us to 2) Straw purchasers. These are people with clean records who buy guns legally, only to turn around and sell them to criminals or others who cannot buy guns because they would not pass the background check. Nearly one-third of trafficking investigations involve straw purchasers. 3) Gun shows and private dealers. A loophole in the federal law allows unlicensed sellers to sell guns at gun shows without performing background checks, meaning criminals can easily obtain a gun by using these methods to purchase. As mentioned earlier, closing the gun show loophole is widely considered to be the most likely federal legislation to become law, but bipartisan anti-trafficking bills introduced in the House and Senate are gaining support on both sides of the aisle.