Article 5 Service on other individuals
Where under these Rules any document is to be served on an individual other than the court administration officer it may be served—
(a)
on the individual personally;
(b)
if he is subject to service law, by post in a letter addressed to him at his unit;
(c)
if he is not subject to service law—
(i)
by leaving it at his usual or last known place of abode; or
(ii)
by post in a letter addressed to his usual or last known place of abode.