(1) Insert the following heading to section 55B of the Road Safety Act 1986 —
" Blood and urine samples—persons assessed to be impaired by drugs ".
(2) After section 55B(1A) of the Road Safety Act 1986 insert —
"(1B) A police officer must not require a person to allow a sample of the person's blood to be taken for analysis or to furnish a sample of the person's urine for analysis under subsection (1) if the person has already had a sample of blood taken from the person under section 55BA.".