Part I Principal Road Safety Provisions
Motor vehicles: drink and drugs
F16DArrest
(1)
A constable may arrest a person without warrant if as a result of a preliminary breath test the constable reasonably suspects that the proportion of alcohol in the person’s breath or blood exceeds the prescribed limit.
(2)
A constable may arrest a person without warrant if—
(a)
the person fails to co-operate with a preliminary test in pursuance of a requirement imposed under section 6, and
(b)
the constable reasonably suspects that the person has alcohol or a drug in his body or is under the influence of a drug.
(3)
A person may not be arrested under this section while at a hospital as a patient.