IMMAD - Impairment Measurement Marijuana and Driving is a bioscience company doing research and technology development for the responsible use of marijuana. The technology, IMMAD-VR, is an objective test of impairment to the retina for use by law enforcement that provides roadside determination of impairment to drive while under the influence of marijuana. IMMAD-Tears is a novel biomarker of cannabinoids more sensitive than breath or saliva.