Conflict of Interest ACT Con't-2 http://laws-lois.justice.gc.ca/eng/acts/c-36.65/page-2.html#docCont
Decision-making

    6 (1) 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.
    Marginal note:Abstention from voting

    (2) 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.

Marginal note:Preferential treatment

7 No public office holder shall, in the exercise of an official power, duty or function, give preferential treatment to any person or organization based on the identity of the person or organization that represents the first-mentioned person or organization.