Gang culture is a major part of London that many people rarely see, and its notoriously near-impossible to capture on film.

However, Channel 5 are attempting it in a ground-breaking new documentary.

Gangland places the story squarely in the hands of its subjects – filmed by the gang members themselves.

BAFTA nominee Paul Blake originally was filming a more conventional documentary – but had to scrap his plan after one of the subjects was shot and seriously wounded.

He resolved to find a different way to approach the topic – dropping off GoPro cameras in designated locations.

Blake and his crew would leave the 10 cameras away from CCTV surveillance, and pick them up later with footage filmed by gang members, most of whom were teenagers.

As a result, the footage is raw and candid, with gangs choosing what they shot and how they presented themselves.

Tune in for up-close details on the day-to-day tasks of drug production and smuggling, as well as unsettling footage of members bragging about their success on the streets.

Supposedly several of the subjects of the film have since been arrested – including Jordy, a former member of the Woolwich Boys street gang who supposedly made more than £2000 a day in his prime.

Two youths involved in the documentary have been killed since filming began.

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This shocking and visceral film will not be for everyone, but Blake hopes it will help people understand what it is like to live in these violent conditions.

“You would read about these deaths,” Blake told the Guardian. “But you never knew anything about the kids.

“I wanted to get behind that and find out who they are, to let people across the country know who they are.”

If you need help, or wish to support those wanting to leave gangs, please visit www.gangsline.com

Channel 5, 10pm