OTTAWA -- On the same day a union was busted for trying to make an illegal donation to the federal Liberal Party, the Justin Trudeau government said it would repeal laws passed by the previous government that made unions more accountable to their membership.

It's the latest move to undo some Conservative accountability measures.

Earlier this year, Indigenous Affairs Minister Carolyn Bennett waived a requirement, also brought in by the Tories, that required First Nations to publish financial statements as well as total compensation paid to each chief and band council member.

And Liberals are musing about more moves to undermine accountability by perhaps changing the House of Commons calendar so that MPs would only need to be in Ottawa four days a week instead of five. That could reduce the ability of the Legislature to hold the executive branch of government -- Trudeau and his cabinet -- to account.

Labour Minister MaryAnn Mihychuk said Thursday the Liberals will repeal two pieces of legislation the Tories argued made unions more accountable to their membership.

Mihychuk said the moves "restore balance and fairness to labour relations" and that they "right some wrongs from the past."

One law forced unions to file financial statements with details on revenues and spending, particularly any spending on political activities.

The other law replaced a petition drive with a secret ballot in the union certification process. It also made it easier for union members to ask for a decertification vote.

In the election campaign, the Liberals promised to undo both laws.

"These two bills only served to hinder positive employer-employee relationships," Mihychuk said.

An hour earlier, the commissioner of elections said that one union local in Ontario admitted it made what amounted to an illegal donation during the campaign to the Liberals.

On Sept. 15, a Waterloo, Ont., union local paid 23 of its members $100 each to stand behind Trudeau at a campaign event. The elections commissioner ruled that amounted to a $2,300 donation to the party. It is illegal for any union, business or other organization to make a donation to a federal political party or federal candidate.

The Liberals say they were unaware of the illegal contribution but wrote a cheque for $2,300 to the Receiver General of Canada. The union, for its part, signed a compliance agreement and promised not to repeat its mistake.