[2001] NISSCSC C3/01-02(II) (25 October 2001)
C3/01-02(II)
"The main issue the Tribunal was required to decide was whether [the claimant] was still suffering from a loss of faculty resulting from prescribed disease A10 (occupational deafness) and, if so, the extent of that disablement. To assist the tribunal in the determination of that issue [the claimant] was subjected to a hearing test at Mr G...'s clinic. The results of that test differed from the results of the previous test carried out for the Department on 20 October 1999 and the tribunal based its decision on the results of the test at Mr G...'s clinic. It stated that it preferred those results and went on to state that results of hearing tests can vary within hours and that a difference of 1dB average of hearing losses can make a difference of 10% in degree of disablement.
However it did not state why it preferred the results from Mr G...'s clinic. When the two reports are compared the report of 20 October 1999 is the more detailed. It states the name and number of the audiometer used, the date it was last calibrated (12 July 1999), that the responses were precise and repeatable and that the audiogram was consistent with the testing officer's informal observation of [the claimant's] communications ability. The otologist, , Mr S..., interpreted the results of the audiometric test and estimated that from his general observations of [the claimant] her hearing disorder was severe and stated that there was no discrepancy between that estimate and the audiogram. He also stated there had been a positive Rinne test (512Hz) in both ears indicating sensorineural deafness.
On the other hand Mr G...'s report gives no details of the machine used for the test (it simply sets out the results), is not signed and does not contain any otologist comments on the results. In Great Britain Mr Commissioner Jacobs recently considered a case concerning a reassessment of the disablement resulting from occupational deafness in CI/2012/2000 – starred Decision No 22/01. At paragraph 11 he stated that a claimant cannot regain a permanent hearing loss and went on to consider why a test would show an improvement. At paragraph 16 he stated that if a tribunal has different types of evidence it has to weigh the evidence as a whole and that a judgement must be reached after considering the merits of all the evidence.
In this particular case the tribunal was faced with different results from the same type of test and I submit that it was required to state why it preferred Mr G...'s results – see C38/98(IB), paragraph 8. While the tribunal stated that it concluded that the 80% assessment in 1994 was a "rogue" result and that the results "all around the 50% or 60% are more likely to be correct" I consider this does not adequately explain why it preferred the results from Mr G...'s test. Accordingly I support the application."
"For completeness I would point out that when the tribunal accepted [the claimant's] hearing loss it was then required to calculate the extent of her disablement using the figures and formula set out at Parts II and III of Schedule 3 of the Social Security (Industrial Injuries) (Prescribed Diseases) Regulations (Northern Ireland) 1986, as amended. This is:
Using the results of Mr G...'s test the calculation is as follows:
The tribunal's calculation is wrong as it assessed the disablement at 50%. However this makes to material difference to the amount of disablement benefit awarded as, under the provisions of section 103(3)(a) of the Social Security Contributions and Benefits (Northern Ireland) Act 1992, an assessment of 54% is treated as an assessment of 50%"
(Signed): J A H MARTIN QC
CHIEF COMMISSIONER
25 OCTOBER 2001