With British heraldry, the noble's rank in the peerage is indicates by the difference in the coronets. Shouldn't it be similar here and a glance at the heraldry show rank?
Andrew likes being in the thick of the action, but I think infiltrating the package himself is bad judgment. He's the DG now. His function is to oversee.
Healings are going on here. Finn is now fully dedicated to a mission he would have missed but for Lydia. In the process he is gaining back the person he was before, retempered and much harder to break.
It will be obvious to the police it took more than one person to do this. Neither of them were tied up, so they were held. The house was professionally searched. Shaun won't or shouldn't be a suspect.