Marijuana, Driving and Impairment Tests presents the
PhD project conducted by Dr Katherine Papafotiou in
2001. The project involved the administration of 3
doses of marijuana to drivers, and the assessment of
driving performance and performance on impairment
tests (Standardised Field Sobriety Tests- as used by
Victoria Police, Australia). The introductory
chapters of the book present previous research on
the prevalence of marijuana use in the community,
the prevalence of marijuana in road crashes and the
effects of marijuana on driving performance. The
book also takes a close look at the research on the
accuracy of impairment tests to test for impairment
caused by drugs. The results of the project
demonstrate that marijuana impairs driving
differently to alcohol and that impairment tests are
moderately accurate tests of impairment caused by
drugs. Dr Papafotiou makes some recommendations on
how the accuracy of impairment tests, to test for
the presence of marijuana and impairment in drivers,
can be improved.