"Q. Would you agree that the making of a positive diagnosis
of the cause of complaints in those circumstances (Professor
Breslin did not conduct a clinical examination of the group
members but had certain medical reports about them available to
him) is particularly difficult?
A. Yes, and I was at pains not to make a positive diagnosis but
to make a statement as to whether I thought environmental
tobacco smoke was consistent with some of the symptoms that they
had.
Q. Does it follow from what you have just said, professor, that
there could be other factors that are equally consistent with
some of the symptoms that these people had?
A. Yes.
Q. Is this right, professor, that you felt that as far as you
could responsibly go was to say that there was a possibility
that environmental tobacco smoke caused or impacted upon the
symptoms which these people complained of?
A. Correct." (AB 319K-R)
"Q. Would you agree that that infection may have developed into
a clinical illness whether or not she (Mrs Cameron) was seated
in smoking or non-smoking?
A. Oh, for certain, yes, absolutely.
Q. It may have developed into a clinical illness whether or not
she was exposed to environmental tobacco smoke on the flight or
not?
A. Yes.
Q. Would you agree that if she had such an incubating condition
it might have been aggravated by the conditions on the flight
apart altogether from environmental tobacco smoke?
A. Yes.
Q. So that even (sic - if) she had been flying the front
non-smoking cabin of economy the circumstances of flight may
nonetheless have aggravated an incubating condition. Is that
right?
A. Yes." (AB 320V-321G)
"Q. At the bottom line, so far as Mrs Cameron is concerned, is
this the position that you are not in a position to state
positively that any of the symptoms were caused by or aggravated
by exposure to environmental tobacco smoke as distinct from
other factors but you say that some of those symptoms could have
been exacerbated by that exposure?
A. Yes, having not seen the patient, particularly not seeing
the patient, Professor McKenzie and I are in the same boat. We
have not seen the patient particularly at the time of the acute
illness and therefore I believe that it could be one or the
other but quite consistent with environmental tobacco smoke.
David believes that because he didn't think environmental
tobacco smoke could do it, then he feels that the balance is in
favour of the other environmental factors. (AB 323E-J)
Q. Again, I do not want to misstate your position, Professor,
but I just want to make sure that I understand it in terms that
I am comfortable with. Is what you are telling his Honour that
it is conceivable that it was caused by environmental tobacco
smoke, it is conceivable that it was caused by a number of other
conditions and given the disadvantages under which you were
operating you are simply not in a position to say anything more
than that?
A. Yes, that's exactly right, it's consistent but not
diagnostic." (AB 324B-E)
"Q. Can we come back to Mr Hooper? I think you have agreed that
nausea and vomiting can result from causes other than
environmental tobacco smoke?
A. Correct.
Q. You have agreed that there are conditions on aircraft travel
other than environmental tobacco smoke which can produce those
symptoms, correct?
A. Yes, and sometimes before you get on the aircraft.
Q. Is it right to say that severe emotional and psychological
distress can produce those symptoms?
A. Yes." (AB 325F-J)
"Q. No, he (Commander Glass) did not, but would you not agree
that a patient who complains of symptoms can wrongly link those
symptoms to some stimulus to which he was exposed?
A. That's correct.
Q. One possibility is that Commander Glass for some reason or
another could not get to sleep and he rightly or wrongly
attributed to the presence of environmental tobacco smoke?
A. That's highly - that's a possibility, yes. It's highly
reasonable.
Q. So far as Mrs Aroney is concerned if I could ask you to turn
to her. Would you agree that her nasal sinus congestion and
painful left ear conditions are typical problems flowing from
changes in barometric pressure?
A. Yes, and I've said as much in my report.
Q. Yes. So that so far as those conditions are concerned is it
right to say that that is one possible cause of the problem and
in your view ETS is another possible contributor to the problem?
A. Correct." (AB 327H-O)