Several key players provided evidence or interviews as part of the investigation into Prime Minister Justin Trudeau鈥檚 handling of the SNC-Lavalin scandal, including former CEO Neil Bruce and members of Trudeau鈥檚 inner circle.

A report published by Ethics Commissioner Mario Dion Wednesday found Trudeau broke the federal Conflict of Interest Act by seeking to influence Jody Wilson-Raybould in "many ways."

According to the report, Dion requested documents from 13 witnesses related to the investigation and received documentation from one additional witness.

Those that provided written submissions or documents include Bill Morneau, Jody Wilson-Raybould, former CEO of SNC-Lavalin Neil Bruce, and Trudeau鈥檚 former principal secretary Gerald Butts, who resigned amid the SNC-Lavalin scandal.

Dion conducted interviews with six of those who provided evidence, including Morneau, Wilson-Raybould, and Mathieu Bouchard, senior advisor to the prime minister.

He also requested follow-up information, via sworn affidavit, from Trudeau and three witnesses.

鈥淢r. Trudeau was given an opportunity to review the transcript of his interview, excerpts of transcripts of interviews from the six witnesses interviewed and the relevant documentary evidence,鈥� reads the report.

The report also revealed that Dion was denied access to pertinent information from nine witnesses during his investigation.

鈥淒uring this examination, nine witnesses informed our Office that they had information they believed to be relevant, but that could not be disclosed because, according to them, this information would reveal a confidence of the Queen's Privy Council,鈥� Dion wrote in the report.

According to the report, in a letter dated June 13, Privy Council Clerk Ian Shugart declined Dion鈥檚 request for access to all cabinet confidences related to the investigation.

Dion notes that Trudeau's legal counsel said the decision on whether to expand the waiver was鈥漨ade by the Privy Council Office without the involvement of the prime minister or his office.鈥�

Here is the complete list of witnesses:

Interviews:

  • Bill Morneau, minister of finance
  • Jody Wilson-Raybould, former minister of justice and attorney general
  • Mathieu Bouchard, senior advisor to the prime minister
  • Nathalie G. Drouin, deputy minister of justice and deputy attorney general
  • Elder Marques, senior advisor to the prime minister
  • Michael Wernick, former clerk of the privy council

Written submissions or documents provided:

  • Scott Brison, former president of the Treasury Board
  • Bill Morneau, minister of finance
  • Jody Wilson-Raybould, former minister of justice and attorney general
  • Mathieu Bouchard, senior advisor to the prime minister
  • Neil Bruce, former chief executive officer, SNC-Lavalin
  • Gerald Butts, former principal secretary to the prime minister
  • Ben Chin, former chief of staff to the minister of finance
  • Nathalie G. Drouin, deputy minister of justice and deputy attorney general
  • Elder Marques, senior advisor to the prime minister
  • Jessica Prince, former chief of staff to the minister of justice and attorney general
  • Paul Shuttle, former counsel to the clerk of the privy council (for Michael Wernick)
  • Katie Telford, chief of staff to the prime minister
  • Justin To, deputy chief of staff and director of policy to the minister of finance
  • Michael Wernick, former clerk of the privy council