The question whether a person is entitled to carry on an activity which is a reserved legal activity is to be determined solely in accordance with the provisions of this Act.
A person is entitled to carry on an activity ("the relevant activity") which is a reserved legal activity where—
the person is an authorised person in relation to the relevant activity, or
the person is an exempt person in relation to that activity.
Subsection (2) is subject to section 23 (transitional protection for non-commercial bodies).
Nothing in this section or section 23 affects section 84 of the Immigration and Asylum Act 1999 (c. 33) (which prohibits the provision of immigration advice and immigration services except by certain persons).