(1) The transfer of personal data to a third country or an international organisation shall not take place, subject to section 100, unless -
(a) the transfer is necessary for a purpose specified in section 70(1)(a),
(b) the personal data are to be transferred to a controller in a third country or an international organisation that is an authority competent for the purposes specified in section 70(1)(a),
(c) where the personal data were transmitted or made available to the controller making the transfer from a controller in another Member State, subject to subsection (2), the controller in the other Member State or another relevant controller in that state has given its prior authorisation to the transfer,
(d) section 97, 98 or 99 applies, and
(e) the transfer is subject to a condition that a subsequent transfer to another third country or international organisation from the third country or international organisation to which the data are being transferred by the controller shall only
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