A Belgian criminal organisation’s links with a Brazilian cocaine gang have been the focus of a major trial in Brussels, where smuggling links have been alleged between European players and the drug cartels of Latin America

In the early hours of 7 September, a convoy of heavily armed police swept through the sleeping streets of central Brussels towards the Haren district, on the city’s north-eastern outskirts. They made their way to 22 Avenue du Bourget, a militarised bunker-like complex that was the former headquarters of Nato.

The modernist complex, with its austere and functional architecture, was hastily built in 1967 and houses the Justitia courtroom, where Belgium’s federal trials are now held. It was here that the perpetrators and accomplices of the 2015 Paris terrorist attacks and the 2016 Brussels attacks were tried in 2022.

Amine Kessaci, 23, lives under constant threat as trial of five men becomes focus of nation’s battle with mafia-style crime

At 23, he is one of the most heavily protected people in France, constantly sleeping in different locations to escape the threat of contract killers from the country’s biggest drug cartel.

“Narcos and drug traffickers only have one language, one method: violence,” said Amine Kessaci, a young law student from a Marseille housing estate, who, after the murders of his two brothers, has become the most outspoken voice against the Latin American-style narco gangs expanding their reach across France.

Drawing on dozens of interviews with intelligence and police officers across two continents, a Guardian investigation reveals the murderous cost of our insatiable appetite for cocaine

Read more: Latin American organised crime ‘may operate in 16 European countries’
Explainer: What is state capture and why does it matter?

As abductions go, few have been more brazen. Alan Jalloh was with two friends outside Goodies supermarket, frantic as usual with late afternoon shoppers. Rush hour in downtown Freetown, Sierra Leone’s capital, was under way with familiar gusto.

A black Toyota Rav4 forced its way through the Peninsula highway traffic. Witnesses describe burly white men leaping out, yanking on balaclavas. Jalloh, 40, seemed to freeze. As did his two friends, one a famous Freetown footballer. All three were dragged into the waiting SUV. None of them have been seen since.