(1) The Chief Medical Officer may require a person to be kept in isolation, if the Chief Medical Officer —
(a) has reasonable grounds to believe that a person is, or may be, infected or contaminated with COVID-19; and
(b) considers that it is necessary and proportionate to do so in order to reduce or remove the risk of the person infecting or contaminating others.
(2) Where the Chief Medical Officer has reasonable grounds to believe that a person is, or may be, infected or contaminated with COVID-19, the Chief Medical Officer may detain the person pending the decision of the Chief Medical Officer under subsection (1).
(3) Where subsection (1) applies, the Chief Medical Officer may impose on or in relation to a person one or more screening requirements.
(4) Where a restriction or requirement is imposed under this section, the person imposing the restriction or requirement shall express it to be contingent on the incidence or transmission of COVID-19 constituting a serious and imminent threat to public health.