The top ten source states for supplying crime guns to Mexico in 2009 were Texas (2076 guns), California (1011), Arizona (690), New Mexico (173), Florida (113), Colorado (100, Oklahoma (90), Illinois (84), Nevada (56), and North Carolina (56). In total, the top ten supplier states contributed more than 4,449 guns, or about 90 percent of the guns recovered in Mexico that were originally sold in the US.
On a per capita basis, in 2009 Arizona led the pack in exporting weapons to Mexico, at a rate of 10.5 guns per 100,000 inhabitants. New Mexico, with 8.6 per 100,000, and Texas, with 8.4 per 100,000, ran a close second and third.
Recent media reports cited by the authors also indicated that the "time to crime" had dropped precipitously during the period studied: from more than six years in 2006 to under three years in 2009. "While export rates identify which states supply crime guns to Mexico at the highest rates, Time-To-Crime, or 'TTC,' measures the time between a gun's initial retail sale and its recovery in a crime," the report notes.
Mexico, according to the LA Times, has deployed 45000 troops and 5000 federal police to 18 states in a so far unsuccessful effort to halt the escalating drug violence.
Former Mexican President Vicente Fox told Bloomberg News in July that the U.S. as well as Mexico was responsible for the violence.
"What is happening is that this huge market of the United States in drug consumption, the largest in the world, is generating the weapons that are sold to Mexican cartels, and is generating the money that is laundered in the United States and brought to Mexico," Fox said.