Transport and Works Act 1992

31 Provision of specimens for analysis

(1) In the course of an investigation into whether a person has committed an offence under section 27 above, a constable may require him—

(a) to provide two specimens of breath for analysis by means of a device of a type approved by the Secretary of State, or

(b) to provide a specimen of blood or urine for a laboratory test.

(2) A requirement under this section to provide specimens of breath shall only be made at a police station.

(3) A requirement under this section to provide a specimen of blood or urine shall only be made at a police station or at a hospital; and it shall not be made at a police station unless subsection (4) below applies.

(4) This subsection applies if—

(a) the constable making the requirement has reasonable cause to believe that for medical reasons a specimen of breath cannot be provided or should not be required,

(b) at the time the requirement is made, either a device (or reliable device) of the type mentioned in subsection (1)(a) above is not available at the police station or it is for any other reason not practicable to use such a device there, or

(c) the suspected offence is one under section 27(1) above and the constable making the requirement has been advised by a medical practitioner that the condition of the person required to provide the specimen might be due to a drug.

(5) A person may be required to provide a specimen of blood or urine in pursuance of this section notwithstanding that he has already provided or been required to provide two specimens of breath.

(6) If the provision of a specimen other than a specimen of breath may be required in pursuance of this section, the question whether it is to be a specimen of blood or a specimen of urine shall be decided by the constable making the requirement; but if a medical practitioner is of the opinion that for medical reasons a specimen of blood cannot or should not be taken, the specimen shall be a specimen of urine.

(7) A specimen of urine shall be provided within one hour of the requirement for its provision being made and after the provision of a previous specimen of urine.

(8) A person who, without reasonable excuse, fails to provide a specimen when required to do so in pursuance of this section shall be guilty of an offence.

(9) A constable shall, on requiring a person to provide a specimen in pursuance of this section, warn him that a failure to provide it may render him liable to prosecution.