I think they fear that he has well-connected and organized supporters, something most other people fleeing don&#x27;t have. And he has the benefit of time: he doesn&#x27;t have to move until everything is perfect, because there is no way of catching up to him where is right now.<p>If you don&#x27;t know when your target is going to move, how do you stop him from leaving UK waters before you even realize he isn&#x27;t there anymore? Monitor every single boat moving on the Thames, 24&#x2F;7? Search every ship leaving your jurisdiction?<p>Getting out probably isn&#x27;t easy, but I would be surprised if there weren&#x27;t quite a few people&#x2F;organizations capable of doing it.