The Royal Australian and New Zealand College of Psychiatrists was concerned that a harm-minimisation approach is not implemented by this bill, as well as noting that—and I quote—"The presence of drugs in a person's oral fluid or blood does not directly relate to impairment. … We call for greater research in understanding the link between substance misuse and a person's impairment." The New Zealand Medical Association echoes this, stating, "the science to support roadside oral fluid testing is not quite sufficiently advanced, although it is rapidly evolving. Key concerns include the inability of oral fluid testing to detect impairment, the absence of well-defined threshold levels and impairment limits for many drugs, and the potential for the Bill to exacerbate inequalities for Māori in the criminal justice system."