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And now, in the second part of the BBC World Service Series,

how crime took on the world,

in which Misha Glenny charts the explosion of international crime.

He returns to his old stomping ground of the Balkans.

In the 1990s, the area became a hub of smuggling

with the illicit gains helping fuel the Yugoslav wars.

The most lucrative trade was in cigarettes.

We're walking up to one of the cigarettes selling plots in Seven Sisters Road.

And just west of that location is the Nagshead Corner,

which is a further two locations where illegal cigarette sellers operate.

Sergeant Stuart Simpson of the Nagshead Safer neighbourhood team

points out some of the most notorious spots

in the Holloway Road area of North London,

where illegal smuggled cigarettes are sold.

All these are run by gangs that work together

and are supported by a criminal network.

The UK has long been a prime target for cigarette smugglers

as they seek to evade the high taxes on cigarettes here.

As I shall explain in this edition of the BBC's

...