I will try and find a link.
Regarding the "rat"...
It is rumoured that he was one of the 6 police officers. He was also a new recruit who did not take part in the beatings, but watched it go down. A couple of weeks later, he felt uncomfortable with the whole situation and mentioned the incident to his girlfriend who is supposedly a sergeant in a different department in B.C. She told him that he should talk to the Justice Institute (B.C. Police School) and that was how it all came out.
The "rat" was suspended as well because he waited 2 weeks before telling a supervisor and that brought his integrity into question. Otherwise, he should have learned to keep his mouth shut.
I believe what the police had done was wrong, but I also understand the frustration they must go through. If they must feel they have to take matters into their own hands to serve a better good, they never should have involved so many others, especially a new recruit who many not know the value of brotherhood and how to keep his mouth shut. As a result, all 6 police officers have been suspended, will likely lose their jobs (ironically, this includes the "rat"), may face criminal/civil action, have divided and damaged a police department, have given further free reign to drug dealers and other criminals.
One positive note from all this is that I have read and heard that the public are saying that it was about bloody time that the police fought crime instead of cruise donut shops. It is unfortunate that these 6 are being disciplined for it.