"The Tribunal considers that Mr Bathe definitely had significant passive cigarette smoke exposure. Passive cigarette smoke exposure is an accepted risk for developing lung cancer. The Tribunal notes Mr Bathe himself has never been an active smoker. The Tribunal also notes a possible genetic predisposition to development of lung cancer when exposed to potential carcinogens by virtue of Mr Bathe’s father having lung cancer. The Tribunal also notes exposure to other potential carcinogens in the workplace including carbon tetrachloride, Turco-white solv and transformer oil. The Tribunal cannot discount the possibility of inadvertent ingestion of these materials (carbon tetrachloride, Turco-white solv and transformer oil) during the course of Mr Bathe’s employment and hence some co-contribution from those potential carcinogens in addition to the known carcinogens in cigarette smoke. The Tribunal considers the major carcinogenic exposure was exposure to cigarette smoke in the work environment and considers there may have been other less important carcinogenic exposures to the other substances as described above. The Tribunal notes the possibility that all of the above exposures may have taken on a greater degree of significance by virtue of a possible genetic predisposition to developing lung cancer by virtue of Graham’s father having developed lung cancer. Taking into account the workplace exposures as a whole, the Tribunal is of the opinion that the criteria set out in all of the relevant Acts have been met with regard to injury."