Now that the Assad regime in Syria has fallen, the full scale of that government's production and distribution of illicit drugs is coming to light.

Leila Malana Allen reports from the drug factories inside Syria.

Damascus, the epicenter of Basha al-Assad's web of control.

Now his regime's carefully guarded

secrets are being unlocked. We're driving up into the mountains on the outskirts of Damascus,

heading for a large Capitagong facility that Rebel Fighters discovered when they took the city.

As we pull up outside an unremarkable warehouse, you'd never know it was the lifeblood

of an organised crime network. The only sign of anything amiss here are the rebel fighters

stationed outside, an empty bullet casing scattered across the parking lot. A fighter leads us into the

darkness. We're inside a cavernous basement of a former food factory.

And when you walk inside, suddenly in front of you,

pallets full of captagon, packed and ready to be smuggled.

And there it is. That's a captagon pill.

And those two little semicircles, mark it.

This former corn chip factory was seized and repurposed after the owner fled five years ago.

Now, in place of corn and flavorings, bags of chemicals stacked along the walls.

This is the room where they actually made the pills.

You can see it was hastily abandoned because some of this liquid from the mixture

of chemicals is still drying in some of the pots. Come over here, this is a palette with the little

shapes into which they would pour the mixed chemicals and harden the pills.

Against the walls, bunks, where workers slept here in shifts to produce high quantities of the drug at speed.

Factories like this have been found across Syria. This is one of the largest.

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