Regards the issue of the Stagg case - Britton`s tools employed to profile the murderer lead to an over-zealous Police Force trying to find a murderer to fit the profile.
This was a case of bullying by the police, though Britton said that profiles werent rigid.
He didnt have involvement with the arrest and imprisonment of Stagg - but the Police wanted to find someone to take the blame - Stagg was, of course, not guilty of the murder of Rachael Nikkel.
The police used an undercover officer who`s "evidence" was not brought to court, before a jury or challenged. The police chased after Stagg with intent to charge and convict.