68.— (1) Subject to subsection (3), where an authorised officer takes a sample of a relevant thing pursuant to section 67(3)(f) or (j), he or she shall—

(a) divide the sample into 3 approximately equal parts,

(b) place each part into separate containers, and

(c) forthwith seal and mark each such container in such a manner as to identify it as part of the sample taken by that authorised officer.

(2) Where an authorised officer has complied with subsection (1), he or she shall—

(a) offer one of the sealed containers to the owner or person for the time being in charge or possession of the relevant thing from which the sample concerned was taken,

(b) retain one of the sealed containers, and

(c) forward, or cause to be forwarded, one of the sealed containers for test, examination or analysis of the sample concerned by a person mentioned in section 69(1)(a), (b) or (c).

(3) Where a relevant thing is contained in a container and its division into parts pursuant to subsection (1) is, for whatever reason, not practicable, an authorised officer who wishes to take samples of such relevant things for the purposes of any tests, examination or analysis shall take possession of 3 such containers belonging to the same batch, and each such container shall be deemed to be part of a sample for the purposes of subsection (1), and the provisions of subsections (1) and (2) shall apply thereto accordingly.

(4) Where an authorised officer takes a relevant thing pursuant to section 67(3)(k), he or she shall—

(a) place the relevant thing in a container,

(b) forthwith seal and mark the container in such a manner as to identify it as a relevant thing taken pursuant to that section, and

(c) forward, or cause to be forwarded, the sealed container for test, examination or analysis of the relevant thing by a person mentioned in section 69(1)(a), (b) or (c).