(1) The Bureau shall perform the functions assigned to it by or under this Part.

(2) In particular, and without prejudice to the generality of subsection (1), the Bureau shall arrange for-

(a) the receipt and analysis of specimens of blood and urine forwarded to the Bureau under section 15, and the issue of reports on such analyses,

(b) the determination, in respect of such specimens, of -

(i) the concentration of alcohol in the blood or urine,

(ii) the presence (if any) of a drug or drugs in the blood or urine, and

(iii) the concentration of a drug or drugs present in the blood,

(c) the issue of certificates required under Chapter 4, to be issued by the Bureau,

(d) the provision of equipment for the taking of such specimens,

(e) the approval of-

(i) apparatus for indicating the presence of alcohol, and

(ii) apparatus for determining the concentration of alcohol,

in the breath,