Section 45E
Detention
A person required to provide a specimen of breath, blood or urine may be detained at a police station until it appears to a police officer that were that person then driving or attempting to drive a motor vehicle on a road, he would not be committing an offence under section 44 or 45 involving intoxicating liquor or under section 45A, but such period of detention shall not exceed twenty-four hours.
(2)
A person shall not be detained in pursuance of this section if it appears to a police officer that by reason of his condition there is no likelihood of his driving or attempting to drive a motor vehicle.
Evidence in proceedings for an offence under sections 44 and 45
involving intoxicating liquor and section 45A