senator dave marsden. >> he came to see tommy in the icu, which i believe helped him realize, wow, she'swe don't have time. >> reporter: the senator decided to add an emergency clause to the legislation he was backing. a clause that would make the bill take effect immediately. if passed, the families' wait would be over. >> reporter: coming up, a rare look inside the lab where charlotte's web is made. >> when you look at this plant, what do you see? >> i see beauty. i see wonderment. i see incredible opportunity. >> reporter: can one drug really replace all these? >> this is what you give up when you start using cannibis. >> when "dateline" continues. t. have you considered using a pleasure gel? no we never have. we never tried one. so one product i think you guys would love, ky yours and mine. there is one warming and one tingling. when they combine it creates an intense new sensation. oooh hoo hoo hoo! when you discover something new together it's like falling in love all over again. is this something you'd try to spice things up? tonight. and that's how they're made. ...no klondike ic

. >> reporter: the proceedings begin with state senator dave marsden explaining the bill he's introducingirginians should not have to become medical refugees from their homes and live in other states. >> if you could introduce yourself -- >> reporter: then, it's the families' turn. >> my name is beth collins and this is our youngest daughter, jennifer, she was going to testify but she's not feeling well today. we had exhausted all other treatments. the side effects of her medication included rages, cognitive functioning issues -- excuse me. this was not the happy go lucky child i once knew. >> reporter: before beth collins can finish testifying, it happens. right there in the hearing room, haley has a seizure. lisa struggles to stabilize her daughter and tries to regain her composure. she still wants to speak to the lawmakers. >> this is leeza -- lisa smith. >> reporter: she collects her thoughts and she steps to the microphone. >> this is normal for me this is daily for me. it's been stated we don't know the longer term effects of medical marijuana but i can tell you i know the long term