When a south London teenager uploaded a series of amateur rap videos to YouTube, he had no reason to believe they would make legal history.
But the videos, a vivid account of life on the road in Peckham for a young black
male, quickly gained millions of views. In one, 18-year-old Matt raps about stabbing, saying: You're always chatting on, you should feel a piece of the knife, stabbing in your head, stabbing in your chest.
In another video,
teenagers make gestures and call out gang names. It was not long before the authorities took notice: last year Matt became the first person in England and Wales to be banned by law from producing music or videos that encourage violence.
Southwark council, which took out the injunction against Matt, believes YouTube has become the new playground for gang members. By all means we want people to use social media, but we do not want you to use it in ways that
will incite violence, said Jonathan Toy, Southwark council's head of community safety. This remains a big issue for us and without some form of censorship purely focusing on [violent videos], I'm not sure how we can address it.
The Google-owned video sharing website YouTube has moved to counter criticism that it helps fuel gang violence by introducing new rules to ban submissions that glamorise guns and knives.
The UK-specific rule will ban videos showing weapons
with the aim of intimidation after criticism that fierce battles were being fuelled by rival members posting videos.
A Google spokesman said: There has been particular concern over videos in the UK that involve showing weapons with the aim
of intimidation, and this is one of the areas we are addressing.
The move comes days after YouTube also introduced new global guidelines to outlaw content that directly incites violence .
But the new rules will not change the
internet giant's stance on the way content is regulated. It is committed to a policy of user-moderation, arguing it is impractical for it to vet every video before it is posted. Once a video is flagged up as potentially inappropriate YouTube's staff
examine it and remove it if it breaks the guidelines.
YouTube has moved to ban videos that supposedly incite violence following criticism in the UK and US that it needed to toughen its policies.
Google-owned YouTube has updated its community rules - specifically pointing out that a new addition is
to make sure no videos directly incite violence.
We realise it's not always obvious where we draw the line on content that's acceptable to upload, said YouTube in a blog post: We've updated the community guidelines… included in
the update are a few new things to steer clear of, like not directly inciting violence.
Within YouTube's community rules section, the updated rules include two points on violent videos. Graphic or gratuitous violence is not allowed, points out one rule:
If your video shows someone getting hurt, attacked or humiliated, don't post it.
The second relevant rule relates to hate speech: We do not permit hate speech (speech which attacks or demeans a group based on race or ethnic origin,
religion, disability, gender, age, veteran status and sexual orientation/gender identity).
When a south London teenager uploaded a series of amateur rap videos to YouTube, he had no reason to believe they would make legal history. 
The Google-owned video sharing website YouTube has moved to counter criticism that it helps fuel gang violence by introducing new rules to ban submissions that glamorise guns and knives. 