Day 018 - 26 Jul 94 - Page 49


     
     1        guns is that there is a cylinder of metal, a bolt, within
              the barrel of the instrument which is fired by a cartridge
     2        in each case?
              A.  Yes.
     3
         Q.   So that the bolt penetrates the skull of the animal?
     4        A.  Yes.
 
     5   Q.   But does not leave the gun completely -- it is not a
              bullet?
     6        A.  That is correct.  That is why it is called "captive";
              it is captive within the gun.
     7
         Q.   In the achievement of an effective stun of the cow, first,
     8        is it important where this slaughterman aims?
              A.  Yes, it can be.
     9
         Q.   Is it important how much of the charge propels the bolt
    10        into the animal's skull?
              A.  Yes, it is.
    11
         Q.   With those considerations, which in your informed opinion
    12        is the more important?
              A.  It is the two together.  If you have a large calibre
    13        cartridge, large grain cartridge, your target area
              increases, so the accuracy of the shot becomes less
    14        important but with a low grain cartridge accuracy is
              critical.
    15
         Q.   That leads to my final question before the adjournment,
    16        Dr. Gregory:  What is it in the discharge of this bolt at
              the head of the animal that actually achieves the stunning
    17        effect?
              A.  Scientifically it is the imparting of energy to the
    18        whole cranium.  You are trying to concuss the animal by
              imparting energy and accelerating the head.
    19
         MR. RAMPTON:  My Lord, I do not know if that would be a
    20        convenient moment?
 
    21   MR. JUSTICE BELL:  Yes, certainly.
 
    22                       (Short Adjournment)
 
    23                                                     2.00 pm.
 
    24   MR. RAMPTON:  Dr. Gregory, before the adjournment I had asked
              you what were the important considerations in the use of
    25        the captive bolt pistol for the achievement of an
              efficient or effective stun.  You had said one was the 
    26        power of the cartridge and the other was the accuracy of 
              the shot. 
    27
              When you went to Midland Meat Packers, did you measure
    28        both accuracy of shot and power of the cartridge?
              A.  I assessed in ten scales the accuracy of the
    29        shooting.  I looked to see whether the grain of cartridge,
              that is, the power of the firing cartridge was compatible
    30        with the manufacturers' recommendations for the type of
              animal which they were slaughtering and the gun they were

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