s 93F Further provision about specimens under section 93E
(1) Where two specimens of breath are provided by a person in pursuance of section 93E, the one with the lower proportion of alcohol in the breath is to be used and the other is to be disregarded. (2) If the specimen with the lower proportion of alcohol contains no more than a prescribed proportion of alcohol, the person who provided it may claim that it should be replaced by such a specimen of blood or urine as may be required under section 93E. (3) If the person then provides such a specimen, neither specimen of breath is to be used. (4) In subsection (2) “ prescribed ” means prescribed by regulations made by the Defence Council for the purposes of this section; and the regulations may prescribe different proportions of alcohol in relation to different kinds of offence. (5) On a request made at the time a specimen of blood or urine is provided under section 93E, the person who provided the specimen must be given a part of the specimen sufficient for the purposes of analysis.