Premier Kathleen Wynne called a late-day news conference to express her anger at the Progressive Conservative leader.
Earlier, Tim Hudak alleged Wynne called the shots in some of the email deletion, now that police documents show a former high-level staff member had access to computers in the premier's office during the transition period.
That's when former-premier Dalton McGuinty handed the keys to his office to Wynne.
But Wynne says Hudak's comments are "irresponsible, they're disgraceful and they're an insult to his office."
She calls this the "worst kind of politics" - a personal attack.
Newly released police documents in the gas plant investigation have led to a likely criminal charge of breach of trust against McGuinty's old chief-of-staff David Livingston.
Wynne stresses when she took over as Premier on Feb. 11, 2013, Livingston did not work for her.
It's alleged that David Livingston gave an outside IT expert access to two dozen computers in the premier’s office, which is suspected to have led to the permanent deletion of information.
And that expert - a staff member's tech-savvy boyfriend.
This was the second time Wynne addressed the media on this matter.
Earlier in the day, she called the allegations "very disturbing."
Wynne says if true, "this not the way a premier's office should conduct itself."