22Refusing to provide breath sample

22 Refusing to provide breath sample (1) A person who— or (b) has, in accordance with the provisions specified in this Act, been required to provide a sample of breath for breath analysis; commits an offence if— (c) the person refuses to provide a sample of breath for analysis; or (d) the person fails or refuses to provide a sample of breath in accordance with the reasonable directions of the police officer who made the requirement. (2) It is a defence to a prosecution for an offence against subsection (1) (d) if the defendant proves that the failure or refusal was based on medical grounds or on another reasonable excuse.