Not even sure where to begin (2)

Hi all,
First post here, I am really seeking advice for a friend of mine, he has been recieveing carers allowence for a person he doesn’t really know 8 months, and has been splitting the money with that person, he has been transferring exactly half the money to a relation of the person, and they then transfer the money to the person supposedly being cared for, he quite naively agreed to do all this without really understanding the situation fully, he is prepared to hold his hands up and pay the money back, but would he alone be solely responsible for the fraud, or would the other two people involved also guilty of fraudulent activity?

As this is a forum for genuine family carers, I don’t think we are the right people to give advice on this. It was deliberate fraud!