According to TMZ, the drug-sniffing dogs picked up the scent of Etheridge's substances and exposed her marijuana oil to agents.
According to TMZ.com, the previously unnoted arrests took place on August 17 and September 9, respectively, in both cases when the performers' tour buses were stopped by U.S. Customs and Border Patrol. Marijuana is legal in her home state of California but not in North Dakota. A A K-9 unit detected drugs and officers later found marijuana oil.
Musician Todd Rundgren in 2014.
She is now cancer-free but still uses marijuana.
"I've been a celebrity here for nearly 30 years, and I've done my best to speak truthfully about who I am and my human experience as I go through life, from my work to my family", Etheridge said in an interview with Yahoo earlier this year.
The rock star opened up to Yahoo! in April about her relationship with marijuana, which she's used occasionally and recreationally since age 21, but more for medicinal purposes after treatment for breast cancer in 2004. This apparently allows the 2 to relax and leads to a "very good night sleep". Silencing critics, the singer said she would much rather smoke with her kids than drink alcohol with them.
Etheridge said that she has actually smoked with her older children numerous times.
Etheridge is also an outspoken proponent of legalization, having recently visited Missouri to endorse a medical cannabis proposal and share her experience using cannabis to treat the side effects of chemotherapy.
Etheridge and Rundgren both have yet to speak out about their alleged arrests.