When police departments investigate their own misconduct investigations this is the result.
I think it is important investigative boards include civilians.

The case that ignited international debate and led to a number of probes into the use of stun guns by police forces, including an inquiry called by the B.C. government, an internal investigation by the RCMP and an investigation by the RCMP public complaints commissioner.

From the day the Polish immigrant died at the Vancouver International Airport on Oct. 14, 2007, after RCMP officers zapped him with a stun gun, RCMP e-mail exchanges obtained by access to information requests suggest the force moved quickly to create a strategy.

The strategy involved all answers being vetted in Ottawa, including ones described by RCMP Commissioner William Elliott as “tough or dirty questions” from the media.

But the e-mail exchange between the RCMP in British Columbia and the force’s headquarters in Ottawa in the aftermath of Dziekanski’s death have prompted questions from a civil rights group and the family’s lawyer, which they say calls into question the RCMP’s public vows for transparency and accountability in the case.

Here is the .pdf of the internal emails which recommend all media questions being vetted by Ottawa.
bc-080717-rcmp-taser-email1