He's under no complusion to say anything on the video. And he's entitled to recant on it.
But if he does you get the obvious, don't you?
- Are you lying now, or were you lying then?
- Is it unusual for you to just lie to people about things like this?
- How can we know you're telling the truth now?
and of course the immortal
- Sir, are you just making this up as you go along?
His evidence, if he does that, could in no way be said to be reliable.
Then again, maybe that's just what he and his team mates want.
Bloody hell I'd want the fee up front if I was representing them. TBH they've probably got plenty anyway, it's just none of it was legally obtained