The doctors who will be testifying don't share your ignorance.
"there are patients with debilitating symptoms for whom smoked marijuana might provide relief. [...] Until a nonsmoked rapid-onset cannabinoid drug delivery system becomes available, we acknowledge that there is no clear alternative for people suffering from chronic conditions that might be relieved by smoking marijuana, such as pain or AIDS wasting." - Marijuana and Medicine: Assessing the Science Base (1999), Institute of Medicine
It's dogma, and nothing the doctors have to say will change it. Dogma is immune to reason.