Subsections (1) to (6) apply where a transfer to which section 73 applies takes place otherwise than in reliance on section 73(4)(aa) (transfer to processor).
... The transferring controller must make it a condition of the transfer —
This subsection applies if—
The UK authoriser may give an authorisation for the purposes of a condition described in subsection (1) only where the further transfer is necessary for a law enforcement purpose.
In deciding whether to give the authorisation, the UK authoriser must take into account (among any other relevant factors)—
In a case where the personal data was originally transmitted or otherwise made available to the transferring controller or another competent authority by a member State ..., the UK authoriser may not give an authorisation for the purposes of a condition described in subsection (1) unless that member State, or any person based in that member State which is a competent authority for the purposes of the Law Enforcement Directive, has authorised the transfer in accordance with the law of the member State.
Authorisation is not required as mentioned in subsection (4) if—
Where a transfer is made in a case described in subsection (4) without the authorisation mentioned in that subsection (whether made with or without authorisation from the UK authoriser), the UK authoriser must, without delay, inform, the authority in the member State which would have been responsible for deciding whether to authorise the transfer ....
Where a transfer takes place in reliance on section 73(4)(aa) (transfer to processor), the transferring controller must make it a condition of the transfer that the data is only to be further transferred to a third country or international organisation where—