(1) A firm comprising 5 or more partners must not discriminate against a person—
(a) in deciding who should be invited to become a partner; or
(b) in the terms on which the person is invited to become a partner.
(2) A firm comprising 5 or more partners must not discriminate against a partner of that firm—
(a) by denying or limiting access by the partner to any benefit arising from partnership in the firm; or
(b) by expelling the partner from the firm; or
(c) by subjecting the partner to any other detriment.
(3) A firm comprising less than 5 partners may discriminate against a person—
(a) in deciding who should be invited to become a partner; or
(b) in the terms on which the person is invited to become a partner—
if the discrimination is reasonable.
(4) A firm comprising less than 5 partners may discriminate against a partner of that firm—
(a) by denying or limiting access by the partner to any benefit arising from partnership in the firm; or
(b) by expelling the partner from the firm; or
(c) by subjecting the partner to any other detriment—
if the discrimination is reasonable.