For the removal of doubts, it is hereby declared that all persons first employed in the public service or Police Force on or after the first day of January, 1972 shall, unless otherwise exempted under any enactment relating to social security or pensions and in force after the commencement of this Decree be deemed to be, from the date of such employment, members of the Social Security Fund and, accordingly, any law relating to pensions shall not apply to service rendered by them in the public service or Police Force.