But.... Harry said he had to be arrested in order to be officially questioned. Does that not sound strange? Can you not be questioned in the UK without being officially detained?
Here's the quote from the BBC website. It's not repetitive at all. Really.
"We all helped the police with their inquiries, but it doesn't directly concern me, it's other people involved. I've been answering questions to help the police. I am not directly concerned with their inquiries.They have to arrest you to talk to you, for you to be in the police station. I think that's the end of it; it didn't directly concern me."