Montana is one of a dozen states that has a passed a medical marijuana law which allows for the use and growth of marijuana for medical treatment. But a discrepancy between state and federal law is having a personal effect on one woman from Missoula.

Robin Prosser says she relies on her two ounces of marijuana that come in different shipments each month, and claims that the Drug Enforcement Agency seized part of a shipment off of a local UPS truck last week.

Prosser says it doesn't make sense to her why the drugs were seized since in November of 2004 Montana voters passed Initiative 148, which allows certain patients with medical conditions to use marijuana under medical supervision.

"I was minding my own business and the state of Montana said I could, and I look to our state officials to protect me."

But federal official Mike Turner says medical reasons are not reason enough to use marijuana under federal law.

"Medical use or reason is NOT an exception from federal prosecution.  The U.S. government does NOT recognize marijuana as a medicine and it is illegal federally to possess any amount of marijuana."

Prosser says that some people in the Treasure State will die as a result of the federal government seizing marijuana that's being used for medical purposes.

"I'm more than willing to lay my life down for this because if they cut off not only my medicine - but other sick people in Montana - they've got blood in their hands."

Officials with the D.E.A. say they are just doing their job, and that since 1970 marijuana has been classified as a dangerous drug with no legitimate use under federal law.