Former immigration minister Judy Sgro will be cleared on wrongdoing allegations by the federal ethics commissioner, CBC News has learned.

In his first significant ruling, Bernard Shapiro is expected to clear Sgro of conflict allegations stemming from a ministerial permit granted to an exotic dancer who worked on her re-election campaign in 2004.

Shapiro is expected to clear Sgro as early as Tuesday, sources have told CBC News.

The volunteer – Alina Balaican – was given a temporary resident permit three days before the June 28 election.

The permit allowed the 25-year-old to remain in Canada for two more years and apply for permanent resident status.

As minister, Sgro had the power to grant temporary visas on humanitarian and compassionate grounds.

But Sgro's political opponents pounced on the incident, claiming she gave preferential treatment and dubbing the controversy "Strippergate."

Shapiro's investigation found Sgro wasn't aware that Balaican had volunteered on her campaign and had never met her, sources told CBC News.

They said the probe also found that Sgro didn't know that two staffers had put her in a position of conflict of interest.

The case, along with allegations by an Ontario pizza-shop owner, caused Sgro to resign from her cabinet post in January.

In the other case, Harjit Singh of Brampton, Ont., accused Sgro of promising to help him avoid deportation if he aided her re-election campaign.

Sgro vowed to clear her name by proving Singh was not credible. She also filed a $750,000 defamation suit against Singh and three other people, saying they slandered her by falsely accusing her of influence peddling.

Singh was deported to India in early February, after his final bid for permanent resident status failed when police records in India indicated a past conviction for passport forgery and attempted child smuggling.

In Canada, he was found liable during a civil trial in connection with a $1 million credit-card fraud scheme.