(1) For the purposes of this Part, a person (''A'') acquires control over a UK authorised person (''B'') if any of the cases in subsection (2) begin to apply.
(2) The cases are where A holds -
(a) 10% or more of the shares in B or in a parent undertaking of B (''P'');
(b) 10% or more of the voting power in B or P; or
(c) shares or voting power in B or P as a result of which A is able to exercise significant influence over the management of B.