Mr. Koff, a former policeman, was hired to do investigations for the stock exchange. All those hired in this capacity were required to take and pass a course. When it was determined that Koff had cheated on the course's examination, he was fired. Koff, who was not covered by a collective agreement, sued for wrongful dismissal. If the court holds that the employer had cause for dismissal, Koff will be entitled to damages equivalent? also does Koff have obligation to mitigate? explain