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Welcome to the explanation from the BBC World Service.
I'm Katie Razzle and this is the Media Show.
We're here to explain the trends behind the fast changing media landscape this week.
How is Elon Musk getting involved in politics and what impact will it have on X&?
A masterclass in sports commentary from an Olympics broadcaster.
It's all coming up on the Media Show.
In recent weeks, parts of the UK have seen violent riots fuelled by misinformation online and anti immigration sentiment.
Some rioters have since been sentenced, using evidence from social media accounts.
To explain how this worked, I'm joined by Nazir Afzal, former Chief Crown Prosecutor for the north west of England.
The Internet is a force for good, but it's also, on this occasion, a crime scene.
And so you've mentioned social media.
Yes.
There's an enormous number of platforms, the ones we know about, there are others, there are messaging apps, there are people who've been whatsapping each other and groups have been broken into or people from within the group have shared what the content of those messages are.
There are forums and discussion boards.
You must know of Reddit and 4chan and a few others.
There's live streaming platforms, there's video photo sharing platforms, there's email correspondence, there's blogs, there's crowdfunding platforms.