Date published: 20 June 2005
Part-time workers – Gibson v Scottish Ambulance Service
The Employment Appeal Tribunal (EAT), in Gibson v Scottish Ambulance Service, has considered the appropriate test to be applied under the Part-time Workers (Prevention of Less Favourable Treatment) Regulations 2000 (PTW Regulations).
Under the PTW Regulations, a part-time worker has the right not to be treated less favourably than a comparable full-time worker concerning the terms of his contract or suffer any other detriment from his employer. This right only applies where the less favourable treatment is on account of the part-time worker’s status and the employer cannot justify such treatment on objective grounds. Under the PTW Regulations, a pro rata principle will be applied to determine whether a part-time worker has been treated less favourably, unless it is inappropriate to do so. Mr Gibson claimed less favourable treatment on the basis that he spent an average of 56 hours per week on standby whereas a full-time comparator based in a different region, averaged only 35 hours per week. It was accepted by both parties that this was contrary to the pro rata principle.
It was submitted for Mr Gibson, that ‘but for’ his part-time status he would have had the same standby hours as his full-time comparator. The tribunal decided that the ‘but for’ argument was the wrong test and, even it was the right test, Mr Gibson would not succeed in his claim as the evidence suggested no single determinant of part-time status, but rather a combination of factors which included his status as a part-time worker. The Employment Tribunal applied a ‘subjective’ test which involved considering the reasons why Mr Gibson was rostered for a proportionately higher number of standby hours than the named comparator.
On appeal, the EAT held that the tribunal had taken the correct approach in applying a subjective test. The application of this test indicated that the main reason for the extra number of hours spent on standby by Mr Gibson was high local demand. It was also found to be relevant that other part-time workers were on different working patterns, which did not offend the pro-rata principle and therefore the treatment could not be said to be solely attributable to his part-time status.
This does appear to be a particularly restrictive interpretation of the PTW Regulations and it is interesting to note that the dissenting minority in the EAT suggested that the reason for the detriment was not the level of demand itself, but the failure of the employer to meet the business needs in a way which was more equitable to part time workers.
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