(1) Where the shares are held on trust for the purposes of a pension scheme there shall be disregarded -
(a) any charge or lien on, or set-off against, any benefit or other right or interest under the scheme for the purpose of enabling the employer or former employer of a member of the scheme to obtain the discharge of a monetary obligation due to him from the member.
(b) [deleted]
(2) Where the shares are held on trust for the purposes of an employees' share scheme, there shall be disregarded any charge or lien on, or set-off against, any benefit or other right or interest under the scheme for the purpose of enabling the employer or former employer of a member of the scheme to obtain the discharge of a monetary obligation due to him from the member.