(d) the person has left an infected place, or the Chief Medical Officer has reasonable grounds to believe that the person has left, an infected place within a 21 day period immediately preceding the date of the person's arrival in Saint Lucia, the Chief Medical Officer may, for the purposes of screening, assessment and the imposition of restrictions or requirements under section 42, impose on that person a requirement to be detained until the later of —
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(i) the end of the period of 48 hours beginning from the time the person is detained under this section,
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(ii) such time as screening requirements imposed on or in relation to the person under section 42(1) have been complied with and the assessment referred to in that section is completed in relation to the person.