CALGARY - It's payback time for a PC party Wildrose Leadeross Danielle Smith says suffers from a culture of corruption.

On the campaign trail in Calgary Tuesday, where polls suggest support for the Wildrose has weakened, Smith called on the Progressive Conservatives to hand over donations received by the party by publicly-funded agencies, including municipalities, colleges and universities.

Elections Alberta last month began a review of 73 files of alleged illegal political contributions from prohibited corporations.

The investigation is ongoing with Elections Alberta already finding several cases of wrongdoing.

Smith said lingering questions over the sketchy donations should be cleared up with cheques returned to the institutions that drafted them in the first place.

"Of all the issues that illustrate how the culture of corruption and entitlement have infected the Redford PC government, the widespread, repeated solicitation of illegal political donations from public agencies stands out as truly beyond the pale," Smith said.

"I am calling on them to return all the prohibited donations immediately, before they spend another nickel on their campaign."

Smith blasted the PCs for blaming donors and denying they sought kickbacks from the donations.

"If the (Alison) Redford PCs have a shred of democratic decency left, they will immediately give back all the illegal donations they've collected over the last several years, and only finance their campaign with legal donations -- if they have any," she said.

Smith said a Wildrose government will make the office of the chief electoral officer fully independent and free to conduct full investigations.