(1)  If it appears to the Sheriff, after the issue of summonses under section 27 but before the persons summoned attend for jury service, that, for any one or more days of their attendance, the number summoned is greater than the number required, the Sheriff may defer or cancel the jury service of all or a selected number of those persons.

(2)  If it appears that the number of persons attending for jury service exceeds the number reasonably required, the Sheriff or the court may defer or cancel the jury service of all or a selected number of those persons.