H3. Where—
(a)a transferred employee has continued in the employment of his new employing body, and
(b)immediately before he was transferred (whether before or after the commencement of these regulations) it was the prevailing practice of the body employing him, in relation to employees of that description, to exercise so as to secure the payment of, or of increased, gratuities, allowances or pensions any discretionary power exercisable by them by virtue of any enactment relating to pensions, and
(c)that or any corresponding power becomes exercisable in relation to him,
the new employing body shall exercise the power in a way which is not less beneficial than the general character of that practice.