From the Conflict of Interest Act

For the purposes of this Act, a public office holder is in a conflict of interest when he or she exercises an official power, duty or function that provides an opportunity to further his or her private interests or those of his or her relatives or friends or to improperly further another person’s private interests.

No public office holder shall make a decision or participate in making a decision related to the exercise of an official power, duty or function if the public office holder knows or reasonably should know that, in the making of the decision, he or she would be in a conflict of interest.

 No minister of the Crown, minister of state or parliamentary secretary shall, in his or her capacity as a member of the Senate or the House of Commons, debate or vote on a question that would place him or her in a conflict of interest.