CORVALLIS — An Oregon county narcotics enforcement unit arrested an emergency room doctor and five other people while conducting raids on two houses.

The Corvallis Gazette-Times reported Thursday that the doctor is accused of turning marijuana into an oil form, which makes the plant much more potent.

Marijuana is legal in Oregon, but it is illegal to turn the plant into oil without a license.

Authorities say the suspects also had more marijuana than state law allows.

Mark Craig Rose faces two counts of manufacturing marijuana items, two counts of delivery of marijuana and two counts of possession of more than 4 ounces of marijuana.

The Gazette-Times reports that Rose, a doctor at Samaritan Health Services, is the owner of one of the raided homes, at 36585 Crackerneck Drive in Scio, where officials found an active butane hash oil lab.

Officers seized ecstasy, user amounts of methamphetamine and a total of 200 pounds of marijuana from the two houses.

-- The Associated Press