Paragraph 1
A gratuity under regulation 11 shall be calculated by reference to the person’s degree of disablement and his average pensionable pay and shall be—
in the case of a police officer all of whose service by virtue of which his pensionable service is reckonable was full-time, the amount specified as appropriate to his degree of disablement in column (2) of the Table in paragraph 3, and
in the case of a police officer any of whose service by virtue of which his pensionable service is reckonable was part-time, the amount given by the formula—
where—
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G is the amount that the gratuity would be if all the service were full-time service,
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R is the period in years of his pensionable service, and
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Q is the period that would be the period in years of his pensionable service if periods of part-time service were reckonable as if they were periods of full-time service.