Q&A: National Crime Agency

The UK has launched a new National Crime Agency. What is it and what does it do?

What is the NCA?

How is it different from the ordinary police?

Why do you need a separate agency?

How big is organised crime?

Is this the first such agency in the UK?

Keith Bristow's past roles include director of the National Criminal Intelligence service

How is the NCA different to Soca?

How does the NCA relate to police in Scotland and Northern Ireland?