“This was a cover-up of a cover-up,” said NDP MPP Jagmeet Singh (Bramalea-Gore-Malton).

In the NDP’s dissent, the party pointed out “the decisions about the cancellation were made by Liberal politicians and political staff, and were done with no concern about costs.”

Conservative MPP John Yakabuski (Renfrew-Nipissing-Pembroke) said the Liberal report is “a sham” because new revelations continue to surface in the OPP probe.

“The information we had previously was false – in fact, it’s deliberately false,” said Yakabuski, imploring Wynne to reform the committee and allow new witnesses to be called.

In their dissent, the Conservatives said voters should be thankful they held McGuinty’s Liberals to a minority government in 2011, giving opposition parties a say in how the cancellations were investigated.

“The most sobering lesson of the gas plant scandal may be this — if the Liberals had won just one more seat in the 2011 election, none of this would have ever come to light,” the Tories wrote.

“The Liberals would have retained their majority. Any attempt at committee to get documents would have been voted down. The gas-plant scandal hearings would never have happened . . . the Liberals have tried to stall, delay and thwart us at every turn in our bid to get to the truth.”

For the past 20 months, the police have been investigating David Livingston, McGuinty’s last chief of staff, for breach of trust.

The OPP allege Livingston obtained a special computer password in early 2013 that allowed Peter Faist — a private contractor and the spouse of Laura Miller, McGuinty’s then deputy chief — to erase hard drives in the premier’s office.

McGuinty, Faist, Miller, are not subjects of the police investigation and, like Livingston, have denied any wrongdoing.

The OPP’s allegations have not been proven in court.

All except Faist testified at the marathon legislative hearings that called 93 witnesses. He was scheduled to appear last spring, but the NDP and Tories toppled the minority Liberal government before he could attend.

The Grits subsequently won a majority on June 12, giving them control of legislative committees and their reports.

Liberal MPP Bob Delaney (Mississauga-Streetsville) pointed out the hearings were more lengthy than the Warren Commission into the assassination of former U.S. president John F. Kennedy and the inquiry into the sinking of the Titanic and the matter is now in the hands of the police.

“We say, let the OPP investigation go wherever it wishes,” said Delaney.

Auditor general Bonnie Lysyk has estimated that scrapping the two gas plants and relocating them to Napanee and Sarnia could cost ratepayers and taxpayers up to $1.1 billion over 20 years.

Torstar Network