Clayton Roueche, the leader of British Columbia's notorious United Nations gang, has been sentenced to 30 years in prison for his role in a cross-border drug smuggling ring.

U.S. District Court Judge Robert Lasnik handed down the sentence in a Seattle courtroom Wednesday afternoon.

Prosecutors with the U.S. Attorney's Office pushed for the term after the 34-year-old Abbotsford man pleaded guilty to drug and money laundering conspiracy charges earlier this year.

Roueche is the operational leader as well as the public face of the UN gang, a multi-national, multi-ethnic drug dealing organization, which originated in B.C.'s Fraser Valley 11 years ago, according to court documents.

At sentencing, Judge Lasnik said this was "a day of reckoning" for Roueche.

"There are ...children, brothers, sisters and parents suffering every day because of the cocaine and marijuana disbursed by the defendant and his fellow gang members," he said.

It is believed the gang had Canadian networks in Alberta, Toronto and Montreal. The organization is also implicated in other possible drug cases in California, Oregon, Eastern Washington State and Idaho, the United States Attorney's Office said Wednesday.

A long journey

Roueche was arrested in Texas in May 2008 after trying to enter Mexico for an associate's wedding. Deemed a flight risk, he has been held in isolation in a Seattle-area detention centre ever since.

U.S. prosecutors say Roueche used private helicopters, airplanes and automobiles to move marijuana, money and cocaine through various North American borders. In his plea agreement, Roueche admitted he conspired with others to export cocaine from the U.S. into Canada from 2005 onward.

Prosecutors also said the UN leader "oversaw the movement of tens of thousands of pounds of marijuana, thousands of kilograms of cocaine, and millions of U.S. dollars through several states and at least three North American countries."

The three-year investigation into the UN gang by the U.S. Attorney's Office saw the seizure of 2,169 pounds of Canadian marijuana, 335 kilograms of cocaine, $2,033,388 in U.S. currency, two pounds of crack cocaine, four pounds of methamphetamine, and five firearms.

In their sentencing memo, prosecutors wrote: "The group used guns, threats and violence to keep its contracted workers and gang members in line and to ensure that no one informed on the group's activities."

Roueche's lawyer asserts there's no evidence he engaged in the violence, including targeted killings, that the UN has been blamed for. He had suggested a sentence of 15 to 20 years.

The prison term comes as happy news to U.S. investigators, many who spent several years working on the case.

"As head of one of the most ruthless and powerful criminal organizations operating in this region, Clay Roueche conducted himself with brazen impunity," said Leigh Winchell, special agent in charge of the U.S. Immigration and Customs Enforcement Office of Investigations in Seattle.

"Knowing that he will be spending many years behind bars is gratifying for ICE and the other local and international law enforcement agencies that worked tirelessly to see justice served in this case."

British Columbia gang wars

Police say members of the UN gang and rival Red Scorpions are responsible for a large portion of the gang violence seen in Metro Vancouver in recent years, and drug trafficking.

In 2008, eight members of the gang were arrested for conspiracy to commit murder. Among them was Barzan Tilli-Cholli, who stepped up as the de-facto leader of the UN gang after Rouche's incarceration.

All eight remain in custody.

After Tilli-Cholli's incarceration, police say Douglas Edward Vanalstine took charge of the organization.

Vanalstine, along with five others, were charged with drug trafficking November 27 after a major undercover police investigation.

Speaking to media earlier this month, RCMP Supt. Dan Malo described the UN gang as "very fluid," with new members being initiated as others are killed or incarcerated.

He estimates the UN gang has over 100 members and associates.

With files from CTV British Columbia's Lisa Rossington