Going to throw in my interest, and I've already been brewing a concept (see hider). Just let me know if it's the sort of disgraced msifit you're looking for in terms of role and function, but the idea struck me immediately after reading your prologue.

[hider=Character pitch]A forensic pathologist and Home Office consultant, built on precision and restraint. Someone trusted to handle sensitive deaths tied to intelligence and counter-terror operations. Exile came not from error or misconduct, but refusal. In a politically delicate custody death, the official explanation did not align with the evidence: restraint injuries, delayed medical response, a pattern that suggested accountability rather than accident. Asked first to reconsider, then to reframe. Neither happened. The report was submitted as written and stood by. The fallout was quiet and efficient—contracts withdrawn, access restricted, a reputation marked “difficult” in the right places. Credentials remain intact, competence unquestioned, but no longer welcome where narratives matter more than truth. Rogue Row values this precisely: findings are not bent to fit a story, but is reconstructed from what the dead cannot lie about.[/hider]