CRACKING MEXICO'S DRUG CARTELS

One of the many knock-on effects since the attacks on the United States
last September has been the dramatic increase in drugs seizures on the
Mexico/US border.

Tightened US security to fight terrorism along the 3,000km frontier has
made it harder for smugglers to transport cocaine and other drugs.

But US authorities are not the only ones turning the screws. In Mexico,
long seen as home to corrupt drugs officers, efforts have been stepped up
against the traffickers.

A greater trust between the two nations has led to unprecedented
co-operation in the fight against drugs.

Nowhere is that new trust more evident or more important than around the
town of Tijuana on the US border below San Diego. The area is home to some
of Mexico's most notorious drugs cartels.

Half of all the cocaine entering the United States, possibly as much as 80
tonnes a year, crosses at hundreds of points along the border in the desert
stretching out to the east of the city.

Flying over the area in a government helicopter it is easy to see the
daunting nature of the task. The border follows high mountains, far from
any major cities.

"We know that we can't intercept all the drugs that make it across,"
Captain Andrez Ruiz, from Mexico's federal police drugs unit, tells me as
we fly low over the border fence.

"But this year alone we have intercepted three tonnes of cocaine, twice as
much as last year."

Police Corruption

Down on the ground, we make our way past a boarded-up ranch that until two
months ago was the site of a major tunnel. This was the direct entry point
for up to two tonnes of cocaine into the United States every year.

It was discovered in a joint operation between US and Mexican anti-drugs
agents.

Information in the past would never have been shared because of corruption
among Mexican officers.

"We would call our cooperation with the Mexicans unprecedented," says US
deputy ambassador to Mexico John Dickson.

Relations were extremely bad in the 1980s after a US undercover drug
enforcement agent was tortured and killed, after being set-up by his
Mexican colleagues.

"It took us a long time to get over that, now the era of mutual
recriminations and finger pointing is over," Mr Dickson says.

It certainly seems to be something of a new beginning for cross-border
drugs cooperation. For years the Mexican police have been plagued with
corrupt officers. That is now changing.

The process started in the mid-1990s while the Institutional Revolutionary
Party, the PRI, which ruled Mexico for 70 years, was still in power.

But the clean-up has been accelerated since Vicente Fox came to power two
years ago.

Dawn Raids

"In the past we would fire corrupt officers, but we didn't prosecute them
and they often ended as officers in other parts of the country," says
Victor de la Torre, hyperactive head of special operations for the federal
police in Mexico.

"Now the bad cops go to trial and never work as officers again. That's one
of the reasons why the US is taking us more seriously."

As the dawn breaks over the dusty town of Tijuana his squad prepare for
another raid.

This time they are acting on information from the United States Drug
Enforcement Agency that there is a ranch being used as a crack cocaine
laboratory linked to distributors in the US.

This time the spoils are meagre. The squad turns up nothing but a few
grammes of the drug, but the police do turn up information that could help
them in the future.

Certainly there have been failings on both sides of the border to combat
the huge illegal drugs.

But, with the US and Mexican authorities working more effectively together
rather than at cross purposes, both governments will be hoping to cut even
deeper into the cartels' multi billion dollar profits.

With demand for drugs at record levels north of the border that will be
seen as welcome news by the US electorate.