Day 039 - 20 Oct 94 - Page 10


     
     1
     2   MR. JUSTICE BELL:  If I may say so, that is sensible because
     3        these three categories -- not to beat around the bush --
     4        were ways of dismissing the matter.  They could be
     5        dismissed as comparatively rare, not very serious and
     6        reversible, or as produced only by a very high dose, or on
     7        the basis that there was no satisfactory evidence of them.
     8
     9        So, I do not want to really say any more.  Mr. Morris, you
    10        must take your witness, but what you are going to be asked,
    11        if there is something in human reactions which concerns
    12        you, tell us about it.
    13        A.  While we are on the subject of categorisation,
    14        yesterday I offered a categorisation in respect of all the
    15        additives on the positive list which was different from
    16        either of the two we have just outlined.  Yesterday you
    17        indicated that if I could locate these compounds under my
    18        headings of probably reasonable presumption of safety or
    19        may pose a hazard to a small proportion of the population
    20        or may pose a chronic hazard to the entire population and
    21        so on, you indicated yesterday you might like me to use
    22        that categorisation.
    23
    24   MR. JUSTICE BELL:  You use your own.  I am anxious we spend less
    25        time talking about the form of the evidence and more time
    26        on hearing the evidence.
    27        A.  OK.  Might I then just comment briefly, back to Sunset
    28        Yellow, notwithstanding my previous remarks that I did not
    29        have anything to add, because the effect in the animals
    30        reported at the bottom of page 9 of my text was a reaction
    31        occurring only at a very high dose, but my remarks were
    32        intended to convey the suggestion that that was not of
    33        itself sufficient reason for disregarding it, but were
    34        grounds for thinking it was worthy of further
    35        investigation, despite the fact that the regulatory
    36        authorities have chosen to disregard it.
    37
    38   MR. JUSTICE BELL:  Just pause there.  Mr. Rampton, Professor
    39        Walker's high dose, though, related to observed human
    40        reactions.
    41
    42   MR. RAMPTON:  I do not even know about "observed".  He was not
    43        asked about that.  Whether it was his view that that sort
    44        of reaction in humans could occur at high doses and whether
    45        that was an inference from the existing data drawn from
    46        human and animal experiment or whether there are data drawn
    47        from actual observations in humans at high doses, I am not
    48        clear.
    49
    50   MR. JUSTICE BELL:  But when I said "high dose" it was not that 
    51        it had been observed in high doses in animals; he was not 
    52        considering ---- 
    53
    54   MR. RAMPTON:  No.
    55
    56   MR. JUSTICE BELL: -- animal reactions; he was considering only
    57        human reactions.
    58
    59   MR. RAMPTON:  That is because of the way in which the abstract
    60        is framed.

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