Reporting for duty is the critical issue. I am aware of another incident at this airline where the pilot boarded the aircraft. He lost all his licenses and was terminated. In another situation I heard the story of a pilot who was at the hotel waiting on the crew Van for an early morning departure. His partner showed up smelling like booze and obviously still under the influence. The sober one told his mate, "go back to your room sleep it off and call in sick or I will report you and you will get tested." Once you are on the airport, in uniform with the intention of flying and your name is on the crew manifest you are fair game for a violation.