I'm not doubting that the British police have a history of misconduct or that people die in prisons (and I'm not trying to justify it either - it's unequivocally wrong, in my opinion).

But your assertion that "they are recorded as suicides and the doctor and coroner are police appointed ones" suggests that there is a significant cover-up operation and that it heavily involves the Freemasons. I wasn't aware of the number of police who are masons (the article you linked to was interesting) but I don't see a verifiable connection between that and any alleged cover-ups.

I'm not saying that there definitely aren't a significant number of cover-ups involving masons, just that I'm not aware of any credible evidence that suggests that it is the case. If you have some, I'd be interested in seeing it.