Indeed! Sometimes it's obvious, such as armed robbery or hostages. But when it's something like an unproved murderer running away from them, what do you do?
I did some research in England, surprisingly more people are in favour of it being reinstated than opposed. Of course the EU Human Rights forbid this at the moment. However, if the future was different such as England drifting away from the EU and more like the US, change could happen as well as public pressure if people fail to see justice being delivered to extreme criminals (And overpopulated prisons too).
It'll be dark and gritty of course, though you can some comedy and light hearted moments from the cast when they interact with each other.
I had some core characters envisioned from the start including;
-An elderly American who is looking forward to retirement. He provides historical context sometimes "Back in my day we did this..." and ect.
-An aloof war veteran who lost his individuality during service. He acts as the male protagonist and doesn't see things in a morality view.
-Their leader, a former lawyer who often directs the squad and helps maintain their public image, despite the stress it brings her.
I have others too but they're more drafts rather than tied heavily into the story line. I'll need help with them.
I'm glad you enjoy it so far

Thanks for the feedback!