Global Ganja Report

A new study published in The Economic Journal vindicates the optimistic prognosis of cannabis activists that legalizing the herb would de-escalate drug war violence. The study notes a reduction in violence in US states along the Mexican border in recent years, and especially in the counties along the international line. The authors draw a connection to the reduced legal pressure on cannabis in the United States over this same period, thanks to legalization and medical marijuana laws.

For the second year in a row, Brazil has witnessed a deadly prison riot on the first day of the year. A death toll of nine is reported from the central state of Goias. One inmate was decapitated. The violence began New Year's Day afternoon at the rural penitentiary in the outskirts of the state capital, Goiania. Rival criminal factions clashed, broke the barriers of the compound and escaped, by the BBC News account.

Brazilian federal police on Dec. 28 announced the arrest of José González Valencia, one of the top leaders of the Jalisco New Generation Cartel (CJNG)—the criminal machine that in recent years has risen to challenge the Sinaloa Cartel for control of Mexico's narco trade. Valencia, known as "Chepa" or "El Camarón" (The Shrimp), was arrested at Aquiraz, a resort near the coastal city of Fortaleza, where was spending the Christmas holidays with his family. Authorities said Valencia had been living in Bolivia for two years after fleeing Mexico, and had entered Brazil as a tourist on a Bolivian passport.

In the long string of Mexican journalists assassinated for covering police abuse and narco-corruption, the latest case is particularly egregious. On Oct. 6, authorities in San Luis Potosí found the body of Edgar Daniel Esqueda Castro outside the city's airport, dead of three gunshot wounds. He had been abducted by armed men in police unforms the previous night.

Yet another Mexican journalist was slain Aug. 22, as the cartels continue to exact vengeance on any who would dare to report on their reign of terror and corruption across much of the country.  Cándido "Papuche" Ríos, who covered the nota roja (crime and police beat) for local newspaper Diario de Acayucan, was gunned down by unknown assailants along with two other men in the town of Hueyapan de Ocampo, Veracruz state. One of the other two men, with whom Ríos was talking outside a gas station, was a former municipal official.

A 29-year-old man believed to be the godson of Mexican narco lord Joaquin “El Chapo” Guzmán was indicted on drug  charges in a San Diego federal court Aug. 7. Damaso López Serrano AKA "Mini Lic" was charged with smuggling unspecified quantities of methamphetamine, cocaine and heroin. He'd turned himself in to US border agents several days earlier, and is said to be the highest-ranking Mexican kingpin ever to surrender in the territory of the United States.

If Mexican President Enrique Pena Nieto hoped to present an image of stability to US Homeland Security Secretary John Kelly when he flew in on July 5, it proved to be pretty bad timing. On Kelly's second day, he toured southern Guerrero state to witness opium eradication operations there. Late that very night, a riot broke out at the prison in the state's biggest city, violence-torn Acapulco. The explosion of violence at Las Cruces CERESO (Social Readaption Center) ended with at least 28 inmates dead—many of them mutilated and several beheaded.

An armed clash in the early hours of July 5 in a mountain village in Mexico's border state of Chihuahua left at least 25 dead—the latest indication that narco-gangs are stronger than the government across much of the country's drug-producing sierras.