8.—(1) Where any written notice or document is to be given or supplied to the officer concerned under these Regulations, it must be—
(a)given to the officer in person,
(b)left with a person at, or sent by recorded delivery to, the officer’s last known address,
(c)given to the officer in person by the officer’s police friend where the police friend has agreed with the relevant authority to deliver the notice or document, or
(d)given to the officer in any other manner agreed between the person who is required to give the notice or document and the officer.
(2) Where any written notice or document is given or supplied under paragraph (1), delivery is effective on the date on which—
(a)it is given to the officer under paragraph (1)(a), (c) or (d);
(b)it is left with any person at the officer’s last known address, under paragraph (1)(b);
(c)receipt was recorded, if sent by recorded delivery to the officer’s last known address under paragraph (1)(b).