Redford has suspended Mar without pay from his post as Alberta's trade representative to Asia while there's an investigation into whether he used his public job to solicit funds to pay off private debts.
Redford appointed Mar to the job soon after defeating him in the party race to become premier last fall.
The opposition NDP and Liberals note she hired Mar even though he had a checkered history of ethics violations.
In 2004 Mar was criticized by Alberta's auditor general for giving $400,000 in consulting contracts to a former assistant with no proof of any work being done.
Mar has not commented, and it's not known how long the probe will take.