The harsh sound of grinding metal pierces the early morning air on Manchester's "Counterfeit Street".
Orange sparks fly as police officers cut through a reinforced steel door with an angle grinder.
After gaining entry to the building, they climb a narrow staircase where they are faced by another near-impenetrable door.
This time a battering ram is used, and officers eventually rush into the fortified premises.
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Inside, it's a maze of windowless rooms and secret doors.
Each room of the building, off Lockett Street in Cheetham Hill, is filled with suspected counterfeit goods.
It's one of many similar set-ups in the area surrounding Strangeways Prison, which has
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