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Gun Trafficking and the Southwest Border

Overview of Gun Trafficking from the United States to Mexico

In the U.S. Department of Justice’s National Drug Threat Assessment 2009, Mexican drug
trafficking organizations (DTOs) were identified as the greatest organized crime and drug
trafficking threat to the United States worldwide.1 With increased U.S. efforts to interdict narcotic
smugglers in the Caribbean and Florida in the late 1980s and 1990s, the Colombian drug cartels
began subcontracting with Mexican DTOs to smuggle cocaine into the United States across the
Southwest border. By the late 1990s, Mexican DTOs had pushed aside the Colombians and
gained greater control and market share of cocaine trafficking into the United States. Today,
Mexico is a major supplier to U.S. markets of heroin, methamphetamine, and marijuana and the
major transit country for cocaine smuggled into the United States. The Department of State
estimates that as much as 90% of the cocaine entering the United States now transits through
Mexico.2

Since taking office in December 2006, Mexican President Felipe Calderón has made combating
drug cartels3 and drug violence a top priority of his administration. President Calderón has
deployed some Mexican army contingents and federal police to cartel-controlled areas throughout
Mexico to re-establish government control.4 In response, drug cartel enforcers reportedly are
buying semiautomatic versions of AK-47 and AR-15 style assault rifles, and other military-style
firearms, including .50 caliber sniper rifles in the United States. With those rifles and other
armaments,5 the cartels are achieving parity in terms of firepower with the Mexican army and law
enforcement. President Calderón has called upon the United States to increase its efforts to
suppress the flow of U.S. firearms into Mexico. According to the U.S. Department of Justice,
drug-related murders in Mexico doubled from 2006 to 2007, and more than doubled again in
2008 to 6,200 murders.6 Of the murders in 2008, nearly 10% involved law enforcement officers
or military personnel killed in the line of duty.7

More than 23,000 firearms were recovered by Mexican authorities and submitted for tracing to
the U.S. Department of Justice (DOJ), Bureau of Alcohol, Tobacco, Firearms and Explosives
(ATF) from FY2004 through FY2008.8 Although only a fraction of recovered firearms are
submitted for tracing,9 approximately 87% of traced firearms were determined to have originated
in the United States.10 Law enforcement authorities in both nations are confronting the Southwest
border paradigm: drugs and illegal migrants flow north, guns and money flow south.11 The
Mexican government estimates that 2,000 firearms are smuggled across the Southwest border
daily.12 Although firearms trafficking is not the only reason violent crime is increasing in Mexico,
reducing the flow of illegal firearms from the United States to Mexico would arguably reduce
crime rates in Mexico and improve public safety.

Mexican gun laws are generally much stricter than U.S. gun laws.13 The Department of State’s
Bureau of Consular Affairs “Tips for Travelers to Mexico” warns U.S. gun owners not to take
firearms to Mexico unless they have a permit from the Mexican Embassy, as several dozen U.S.
citizens have been incarcerated in Mexico on weapons-related charges, including some who
inadvertently carried a U.S.-licensed weapon into Mexico.14 In its publication, Guide To The
Interstate Transportation of Firearms, the National Rifle Association (NRA) also warns that
firearms are “severely restricted” in Mexico, but offers information on how firearms can be taken
legally to Mexico for sporting purposes.15

In many ways, the gun trafficking issue between Mexico and the United States is analogous to the
“crime gun” trafficking issue that has arisen among states within the United States.16 Some states
have more liberal gun laws, and others, stricter gun laws. Oftentimes, the latter view the former as
the source of many crime guns and, hence, gun-related crimes.17 It is noteworthy that the cross-border
flow of illegal firearms has also been an issue for Canada,18 because Canadian gun laws
are also generally much stricter than U.S. gun laws.19 Indeed, both Mexico and Canada, in
addition to a minority of U.S. states, require the registration of most privately held firearms, but
there is no U.S. federal registry of firearms.20

Illegal gun trafficking from the United States to Mexico reportedly ranges from frequent small-scale
smuggling of one or two handguns per border crossing to less frequent, larger-scale
conspiracies to smuggle large shipments of military armaments.21 The Department of Homeland
Security’s Customs and Border Protection (CBP) and the Immigration and Customs Enforcement
(ICE) and one of its predecessor agencies, the U.S. Customs Service, have interdicted large
weapons shipments on occasion. It has been reported that firearms are frequently diverted from
legal commercial channels to illegal channels in the United States and then smuggled into
Mexico.22 Although cross-border firearms trafficking is illegal and a high-risk endeavor, the
reward is great, with profit margins that in the past have typically ranged between 300% and
500%.23

Endnotes

1 National Drug Intelligence Center, National Drug Threat Assessment 2009, U.S. Department of Justice, Product 2008-Q0317-005, December 2008, p. III.

2 Department of State Bureau of International Narcotics and Law Enforcement Affairs, International Narcotics Control Strategy Report 2009, February 2009.

3 Some law enforcement agencies and observers prefer to use the term “drug trafficking organizations” when referring to these groups. The term drug cartel remains the dominant term used colloquially and in the press, but some experts disagree with this because “cartel” often refers to price-setting groups and it is not clear that the Mexican drug cartels are setting illicit drug prices.

4 See CRS Report R40582, Mexico’s Drug-Related Violence, by June S. Beittel.

5 One commentator has asked, “Where are the military-grade firearms really coming from?” Despite press accounts to the contrary, grenades, rocket launchers, bazookas, and high-explosives are not easily obtainable in normal (non-military) commercial channels in the United States. However, a significant number of these items are imported legally by the Government of Mexico from the United States, prompting this commentator to suggest that many of those items are illegally trafficked in Mexico by corrupt government officials or stolen by deserting Mexican soldiers. This commentator also suggests that other military-grade firearms that were previously transferred by the United States to other Central American countries as part of military aid packages have been trafficked illegally to Mexico. See Bill Conroy, “Legal U.S. Arms Exports May Be Source of Narco Syndicates Rising Firepower,” Narcosphere, March 29,
2009.

6 U.S. Department of Justice, Statement of David Ogden, Deputy Attorney General, before the United States Senate Committee on Homeland Security and Governmental Affairs, “Southern Border Violence: Homeland Security Threats, Vulnerabilities, and Responsibilities,” March 25, 2009, p. 5.

7 Ibid.

8 U.S. Government Accountability Office, Firearms Trafficking: U.S. Efforts to Combat Arms Trafficking to Mexico
Face Planning and Coordination Challenges
, GAO-09-709, June 29, 2009, p. 18.

9 According to GAO, Mexican authorities recovered approximately 30,000 firearms in FY2008. Of those firearms, 7,200 were submitted for tracing. Ibid., p. 16.

10 Ibid., p. 15.

11 Oscar Becera, “Firing Line – Tracking Mexico’s Illegal Weapons,” Jane’s Intelligence Review, April 28, 2008.

12 Alfredo Corchado, “Mexico’s violence to intensify, Officials from both sides of border may be targets, experts predict.” Dallas Morning News, January 4, 2009, p. 1A.

13 David Kopel, Guns in American Society, “Mexico,” Second Amendment Project (2007), last accessed on July 23, 2009. Also, see Library of Congress, Law Library, Firearms Regulations in Various Foreign Countries, Report LL98-3, 97-20110, (May 1998), pp. 131-141.

14 U.S. Department of State, Bureau of Consular Affairs, “Mexico: Country Specific Information,” September 13, 2007.

15 National Rifle Association, Guide to Interstate Transportation of Firearms (2008), last accessed on May 22, 2008.

16 According to ATF, a “crime gun” is any firearm that is illegally possessed, used in crime, or suspected to have been
used in crime. An abandoned firearm may also be categorized as a crime gun if it is suspected it was used in a crime or
illegally possessed. See U.S. Department of the Treasury, Bureau of Alcohol, Tobacco and Firearms, Crime Gun Trace
Reports (2000), National Report, The ATF Youth Crime Gun Interdiction Initiative, (July 2002), p. A-3.

17 For example, the state gun laws in New York and New Jersey are much stricter than in states like Pennsylvania and
Virginia. In response to evidence of interstate gun trafficking, the Virginia General Assembly passed a law limiting
handgun purchases to one gun per sale in an attempt to thwart out-of-state gun traffickers from coming to Virginia to
buy multiple handguns. Va. Code § 18.2-308.2:2(P)(1).

18 Charlie Gillis, “American Guns, Canadian Violence: Weapons Are Crossing The Border by The Thousands and The
Number of People Wounded and Killed in This Country Is Mounting,” Macleans, August 10, 2005.

19 Library of Congress, Law Library, Firearms Regulations in Various Foreign Countries, Report LL98-3, 97-20110,
(May 1998), pp. 25-39.

20 Under the National Firearms Act (described below), the U.S. Attorney General maintains the National Firearms
Registry and Transfer Record (NFRTR), which is a registry of machineguns that fire in full-automatic mode, certain
other short-barreled and easily concealable firearms, as well as destructive devices.

21 Oscar Becera, “Firing Line – Tracking Mexico’s Illegal Weapons,” Jane’s Intelligence Review, April 28, 2008. Also,
see Lora Lumpe, “The U.S. Arms Both Sides of Mexico’s Drug War,” Covert Action Quarterly, Summer 1997, no. 61,
pp. 39-46.

22 Ibid.

23 Tim Weiner and Ginger Thompson, “U.S. Guns Smuggled Into Mexico Feed Drug War,” New York Times, May 19,
2001, p. 3.

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