A South Australian woman who admits to supplying cannabis oil to terminally ill people free of charge has said she'll be an even more vocal advocate for medicinal cannabis after being charged with drug offences.

In a video posted on Facebook, Hillier resident Jenny Hallam said she had been charged with possessing and manufacturing a controlled drug and was due in court in May.

"Now that's a big sentence guys, so let's see if they've got the guts to actually follow through and put me in jail for it," she said.

"So a message goes out to all the ladies at the Northfield prison, save a spot for me, I'll be there soon possibly and if I do, we'll have a good time when I get there."

Ms Hallam said she'd been waiting to see what action was taken after her home was raided by police in January.

SA police confirmed Ms Hallam had been charged.

She said she was willing to take whatever punishment came her way, but would not be deterred from helping others in the future.

"I don't care if I go to jail. They're not going to stop me from doing what I'm doing. They're not going to stop me from talking. I'm going to be out there screaming just as loud, and now even louder," she said.

"Supposedly it's all about justice, it's all about the right thing, it's all about looking after people, and what are they doing?

"They're charging me for supplying cannabis oil and for saving people's lives."

'They don't give a summons for being a hero'

When collecting her summons, Ms Hallam said the officer working at the time called her a "hero".

"I did say when I picked up the summons and I read the charges out in front of the officer, I said, 'actually there is one charge missing and that's a charge for saving people's lives'," Ms Hallam said.

"He said 'no, sorry, they don't actually give you a summons for being a hero', and that was what the police officer said, and I have it on video."

Ms Hallam previously told the ABC she had been working with Greens MP Tammy Franks for two years to try and legalise medicinal cannabis in South Australia.

Since Ms Hallam's home was raided, Ms Franks has called for an amnesty in South Australia, similar to the one introduced by former New South Wales premier Mike Baird.